Rosenheim Poltergeist

In the autumn of 1967, in a quiet Bavarian town better known for its alpine scenery and traditional folk art than for anything remotely supernatural, something extraordinary began to happen inside a perfectly ordinary law office. The disturbances that unfolded over the following months in the offices of Sigmund Adam, a respected attorney in Rosenheim, Germany, would become what many researchers consider the most thoroughly documented poltergeist case in history. What began with flickering lights escalated into a cascade of phenomena so bizarre, so meticulously recorded by physicists, police, and utility companies alike, that it defied every conventional explanation offered. At the center of it all stood a nineteen-year-old secretary named Anne-Marie Schneider, a young woman who seemed as bewildered by the events as everyone around her, and whose mere presence appeared to bend the physical world in ways that science could not account for.

A Town in Postwar Bavaria

To appreciate the Rosenheim case, one must understand the setting in which it occurred. By 1967, West Germany had completed its remarkable postwar transformation. The rubble and devastation of the Second World War had given way to the Wirtschaftswunder, the economic miracle that turned the country into one of Europe’s most prosperous nations. Rosenheim, a market town of some forty thousand inhabitants situated along the River Inn in Upper Bavaria, about sixty kilometers southeast of Munich, had shared fully in this recovery. Its medieval town center had been restored, new businesses lined its streets, and the professional class that served its growing population occupied modern, well-appointed offices.

Sigmund Adam’s law practice was one such office, housed in a building at Konigstrasse 13 that was thoroughly contemporary in its appointments. There was nothing old or atmospheric about the premises, no creaking timbers or ancient stonework to invite speculation about lingering spirits. The office featured modern furniture, standard electrical fittings, fluorescent lighting, and the full complement of mid-century office technology, including a rotary telephone system that would soon become the focal point of one of the strangest mysteries in paranormal history. The staff was small but professional, consisting of Adam himself, several legal assistants, and a handful of administrative employees, among them Anne-Marie Schneider, who had joined the firm as a secretary.

It was a setting of complete normality, which is precisely what made the events that followed so unsettling. Poltergeist cases that occur in ancient castles or derelict houses can be dismissed as products of atmosphere and suggestion. But when the laws of physics appear to break down in a modern law office, under the observation of trained scientists and with the evidence recorded on instruments calibrated to exacting standards, dismissal becomes considerably more difficult.

The Disturbances Begin

The first signs of trouble were easy to overlook. In the summer of 1967, the fluorescent ceiling lights in the office began to malfunction. Tubes flickered, dimmed, and occasionally went out entirely, only to resume normal operation moments later. Sigmund Adam, like any practical businessman, assumed the problem was electrical and called in an electrician. The tubes were replaced, the wiring was inspected, and the matter was considered resolved. But the new tubes behaved exactly as the old ones had, flickering and failing with increasing frequency.

Then the problems escalated. Light bulbs began to explode, showering glass across desks and floors. Not just one or two, but bulbs throughout the office, sometimes several in a single day. The fluorescent tubes did not merely burn out; they unscrewed themselves from their fittings and fell to the floor. Staff members watched in astonishment as tubes twisted in their sockets as if turned by invisible hands. On some occasions, the tubes were found to have rotated ninety degrees in their bayonet fittings, a maneuver that required deliberate physical force.

The electrical disturbances were not limited to the lighting. The office photocopier malfunctioned repeatedly, spilling developing fluid across its surface. The fuse box tripped constantly, cutting power to various parts of the office at unpredictable intervals. Most disturbingly, the massive voltage surges that were recorded on monitoring equipment should have been sufficient to damage or destroy the office’s electrical devices, yet the equipment itself showed no signs of the kind of wear such surges would normally produce. The electricity was behaving in ways that contradicted basic electrical engineering.

Adam contacted the local power company, the Stadtwerke Rosenheim, requesting a thorough investigation. Engineers arrived, tested every circuit, examined every connection, and found nothing wrong. To eliminate the possibility that the building’s power supply was at fault, they disconnected the office from the mains entirely and installed an emergency power unit, an independent generator that would supply electricity free from any possible fluctuation in the municipal grid. The disturbances continued without the slightest interruption. Whatever was causing the phenomena, it was not coming from the power supply.

Paintings That Turned and Drawers That Opened

As the autumn progressed, the disturbances moved beyond the electrical system and into the physical fabric of the office itself. Paintings and decorative prints hanging on the walls began to rotate on their hooks, swinging to hang at odd angles. On several occasions, staff members entered rooms to find every picture on the wall turned askew, as if an invisible hand had reached out and twisted each one. When the paintings were rehung, they rotated again, sometimes while people watched. In one well-documented incident captured on film, a painting swung a full three hundred and sixty degrees on its hook, spinning like a compass needle before settling back into place.

Heavy furniture moved without apparent cause. Filing cabinet drawers slid open by themselves, their contents spilling onto the floor. A heavy oak desk shifted several inches from its position overnight. These were not subtle movements that might be attributed to vibration or settling; they were deliberate, forceful displacements of substantial objects that would have required considerable physical strength to accomplish.

The phenomena seemed to possess a quality that investigators would later describe as mischievous rather than malevolent. Nothing was done that caused serious injury, though the exploding light bulbs presented an obvious hazard. The disturbances were disruptive, certainly, and deeply unnerving to the staff, but they stopped short of genuine violence. This pattern is consistent with classical poltergeist cases throughout history, where the activity, however frightening, rarely inflicts lasting harm.

Staff members grew increasingly anxious. Several refused to work alone in certain rooms. The atmosphere in the office became tense and fearful, every unexpected sound prompting nervous glances and whispered speculation. Sigmund Adam, a rational man trained in the rigors of legal reasoning, found himself confronting phenomena that no amount of logical analysis could explain.

The Mystery of the Speaking Clock

Of all the bizarre events at Konigstrasse 13, none was more perplexing or more thoroughly documented than the telephone mystery. The office telephone system began behaving in ways that defied comprehension. Phones rang when no one was calling. Calls were cut off mid-conversation. Lines went dead and then restored themselves. But the truly extraordinary phenomenon was discovered not through direct observation but through the monthly telephone bill.

When Sigmund Adam received his phone bill for October 1967, the charges were staggering, far in excess of anything the office’s normal business would generate. Closer examination revealed the cause: the office telephone had made hundreds of calls to the number 0119, the speaking clock service operated by the German post office. The speaking clock was a recorded service that announced the current time when dialed, and each call was charged at the standard rate. According to the telephone company’s records, the office had placed so many calls to 0119 that the service had been dialed up to six times per minute during peak periods of activity.

No one in the office had dialed these calls. No one had any reason to call the speaking clock dozens, let alone hundreds, of times. The calls were being placed by an agency that left no physical trace, no fingerprints on the dial, no witnesses to the dialing. Yet the telephone company’s automated monitoring equipment recorded each call with mechanical precision. These were not phantom readings or instrument errors; they were real connections to a real service, each one generating a measurable signal that passed through the telephone exchange in the normal manner.

The Deutsche Bundespost, the German postal and telecommunications authority, sent engineers to investigate. They installed monitoring equipment on the line to track every outgoing call in real time. The equipment confirmed what the bills had shown: calls to 0119 were being placed from the office telephone at a rate that was physically impossible for any human operator. Some calls lasted only fractions of a second, as if the number were being dialed and the connection made faster than human fingers could operate the rotary mechanism. In some instances, the monitoring equipment registered calls being placed simultaneously on lines that should have been incapable of simultaneous use.

The telephone company took the extraordinary step of replacing the office’s rotary dial telephones with new models equipped with locks that physically prevented the dial from being turned. The calls to 0119 continued. They then replaced the entire telephone system with a different type of instrument. The calls continued still. Finally, they disconnected the telephone line entirely and installed a completely new line with a new number. The calls to the speaking clock resumed almost immediately on the new line.

This single aspect of the Rosenheim case is, in many ways, its most compelling element. The telephone company records constitute hard, objective, third-party evidence of phenomena that cannot be explained by fraud, equipment malfunction, or human error. The Bundespost had no interest in the paranormal; they were simply recording what their instruments detected. And what their instruments detected was impossible.

The Investigators Arrive

As word of the Rosenheim disturbances spread, the case attracted attention from increasingly senior investigators. The Rosenheim police sent officers to observe the phenomena firsthand. The criminal investigation department examined the premises for evidence of fraud or deliberate sabotage, finding none. Utility company engineers conducted repeated inspections without discovering any technical explanation. But the most significant involvement came from the world of academic research.

Two physicists from the Max Planck Institute, Dr. F. Karger and Dr. G. Zicha, arrived in Rosenheim to conduct a rigorous scientific investigation. Their approach was methodical and skeptical. They installed sophisticated monitoring equipment throughout the office, including instruments to measure electrical voltage, current fluctuations, magnetic fields, and mechanical vibrations. They set up cameras to record the phenomena and kept detailed logs of every incident.

What Karger and Zicha documented was remarkable. Their instruments recorded massive deflections in the electrical monitoring equipment that corresponded to observable phenomena, voltage spikes occurring simultaneously with the swinging of light fixtures or the rotation of paintings. Yet these deflections did not conform to any known pattern of electrical interference. They were not consistent with power surges, static discharge, or electromagnetic interference from external sources. The physicists tested for every conceivable physical explanation, including subsonic vibration, electromagnetic fields from nearby machinery, and even the effects of underground water movement. None of these explanations fit the observed data.

The physicists’ report, published in a respected journal, concluded that the phenomena were genuine and could not be explained by any known physical mechanism. This was not the conclusion of credulous ghost hunters but of trained scientists working with calibrated instruments and following established experimental protocols. Their willingness to publish these findings, knowing the professional risk involved in associating their names with poltergeist research, speaks to the strength of the evidence they encountered.

Professor Hans Bender, Germany’s foremost parapsychologist and director of the Institut fur Grenzgebiete der Psychologie und Psychohygiene at the University of Freiburg, also investigated the case. Bender was an experienced researcher who had studied numerous alleged poltergeist cases and was well acquainted with the various ways in which such phenomena could be faked or misinterpreted. His involvement brought academic credibility and a framework for understanding the events in terms of established parapsychological theory.

Bender spent considerable time at the office, observing the phenomena, interviewing staff, and correlating the disturbances with the presence or absence of specific individuals. It was through this systematic analysis that the connection between the phenomena and one particular employee became unmistakably clear.

Anne-Marie Schneider

Anne-Marie Schneider was nineteen years old in 1967, a young woman from an ordinary Bavarian family working in her first professional position. By all accounts she was quiet, somewhat shy, and unremarkable in every observable respect. She had no interest in the occult, no history of psychological disturbance, and no apparent motive for perpetrating an elaborate hoax. Yet the evidence pointed inexorably to her as the epicenter of the phenomena.

Professor Bender and his colleagues noticed that the disturbances occurred almost exclusively when Anne-Marie was in the building. When she was absent due to illness or holidays, the office was quiet. When she returned, the phenomena resumed. More precisely, the intensity of the disturbances appeared to correlate with her emotional state. On days when she was calm and content, the activity was minimal. On days when she was upset, frustrated, or angry, the phenomena escalated dramatically. Her walk down the corridor to her desk in the morning became a reliable predictor: if the ceiling lights swung in her wake, it was going to be a difficult day.

The investigators observed this correlation repeatedly and with careful documentation. They noted the times of Anne-Marie’s arrival and departure, mapped her movements through the building, and cross-referenced these data with the timing and location of each incident. The pattern was unmistakable. The phenomena did not merely occur in Anne-Marie’s vicinity; they seemed to radiate outward from her, as if she were the source of some invisible force that affected electrical systems and physical objects within a certain radius.

This pattern is consistent with what parapsychologists term Recurrent Spontaneous Psychokinesis, or RSPK, a theoretical framework that attributes poltergeist phenomena not to external spirits but to unconscious psychokinetic abilities manifested by a living agent, typically a young person undergoing emotional stress. The RSPK hypothesis holds that suppressed emotions, particularly anger and frustration, can in rare cases find expression through physical effects on the environment, moving objects, disrupting electrical systems, and producing the full range of phenomena traditionally attributed to poltergeists.

Anne-Marie’s personal circumstances lent support to this interpretation. She was reportedly unhappy in her work, feeling trapped in a position that offered little satisfaction or prospect of advancement. Her relationship with her employer was strained, and she experienced the typical frustrations of a young woman in the rigidly hierarchical German workplace of the 1960s, where secretaries were expected to be obedient, efficient, and invisible. Whether her emotional state was the cause of the phenomena or merely correlated with them remains a matter of debate, but the connection was too consistent to be coincidental.

When Anne-Marie eventually left Sigmund Adam’s employment, the disturbances at Konigstrasse 13 ceased entirely and permanently. The lights stopped flickering, the paintings stayed on their hooks, the telephone bill returned to normal, and the office resumed its quiet, professional routine as if nothing had ever happened. But the story did not end there. Reports indicated that similar, though less intense, phenomena occurred at Anne-Marie’s subsequent places of employment, reinforcing the connection between her presence and the disturbances. These later manifestations gradually diminished over time and eventually ceased altogether, a pattern consistent with the RSPK hypothesis, which predicts that the phenomena typically fade as the agent matures and develops healthier mechanisms for processing emotional stress.

Anne-Marie Schneider retreated from public attention and lived out the remainder of her life in relative obscurity. She never sought to profit from her notoriety, never wrote a book or appeared on television, and reportedly found the entire experience deeply distressing rather than exciting. Her reluctance to engage with the media or the paranormal research community only added to the credibility of the case; a hoaxer would presumably have sought to exploit the attention, while Anne-Marie wanted only to escape it.

The Weight of Evidence

What distinguishes the Rosenheim Poltergeist from the vast majority of paranormal cases is not the nature of the phenomena, which are well within the range of classical poltergeist activity reported throughout history, but the quality and quantity of the evidence documenting those phenomena. In most poltergeist cases, the evidence consists primarily of eyewitness testimony, which, however sincere, is inherently subjective and subject to the distortions of memory, expectation, and emotion. At Rosenheim, the testimony of over forty witnesses was supplemented by the objective records of scientific instruments, telephone company monitoring equipment, utility company logs, police reports, and film footage.

The telephone records are particularly significant because they constitute evidence generated by an entirely independent system with no connection to the paranormal investigation. The Deutsche Bundespost did not install monitoring equipment to detect ghosts; they installed it to diagnose what they assumed was a technical fault. The data they collected was processed through standard procedures by technicians who had no interest in or knowledge of the paranormal aspects of the case. Yet their records documented events that were, by any conventional standard, impossible.

The involvement of physicists from the Max Planck Institute added another layer of credibility. These were not amateur ghost hunters or self-proclaimed psychics but professional scientists operating within the framework of established physical science. Their instruments were calibrated, their methodology was sound, and their conclusions were published in a peer-reviewed format. When they stated that the phenomena could not be explained by any known physical mechanism, this was not a casual observation but a considered scientific judgment based on extensive data.

Professor Bender’s contribution was equally important, providing the theoretical framework of RSPK that made sense of the observed pattern of phenomena centered on a specific individual. His systematic correlation of the disturbances with Anne-Marie Schneider’s presence and emotional state transformed the case from a collection of bizarre incidents into a coherent phenomenon with identifiable characteristics and predictable behavior.

The film footage shot during the investigation, though limited by the technology of the era, provides visual documentation of some of the phenomena, including the swinging of light fixtures and the rotation of paintings. While film alone cannot prove that supernatural forces were at work, it does demonstrate that the physical events described by witnesses actually occurred as described, ruling out the possibility that the entire case was a product of mass hysteria or collective confabulation.

A Case That Endures

More than half a century after the events at Konigstrasse 13, the Rosenheim Poltergeist remains a touchstone in the study of anomalous phenomena. It is cited in virtually every serious treatment of poltergeist research, referenced in academic papers and popular accounts alike, and held up as the standard against which other cases are measured. Its enduring significance lies not in the dramatic nature of the events themselves, though they were certainly dramatic, but in the unprecedented convergence of credible witnesses, scientific investigation, and independent instrumental evidence.

For skeptics, the Rosenheim case represents a challenge that has never been satisfactorily answered. Various debunking attempts have been made over the years, with critics suggesting that Anne-Marie Schneider perpetrated an elaborate fraud, perhaps using concealed threads to move paintings or secretly dialing the telephone. But these explanations falter when confronted with the full body of evidence. The telephone calls were placed at rates that exceeded the physical capabilities of the rotary dial mechanism. The electrical disturbances were recorded on instruments that could not have been fooled by simple trickery. The sheer number and variety of the phenomena would have required a level of deception so sophisticated and sustained as to be nearly as remarkable as the supernatural explanation it sought to replace.

For believers in the paranormal, Rosenheim offers something rare and precious: a case that withstands scrutiny, that does not crumble when examined closely, and that was investigated by people whose professional reputations depended on getting the facts right. It demonstrates that poltergeist phenomena, whatever their ultimate cause, can occur in ordinary settings, affect ordinary people, and produce effects that are measurable, repeatable, and resistant to conventional explanation.

For the scientific community, the case poses uncomfortable questions about the limits of current physical theory. If the phenomena at Rosenheim were genuine, and the evidence strongly suggests they were, then they imply the existence of forces or mechanisms not yet recognized by mainstream physics. The reluctance of the scientific establishment to engage seriously with such cases is understandable, given the history of fraud and credulity in the field, but it means that potentially significant data is being ignored for reasons that have more to do with intellectual fashion than with scientific rigor.

The Rosenheim Poltergeist endures because it refuses to be easily categorized. It is too well documented to dismiss, too strange to accept without reservation, and too richly detailed to forget. In the quiet law office on Konigstrasse 13, for a few extraordinary months in 1967, the boundary between the explicable and the inexplicable dissolved, and ordinary people found themselves living with phenomena that challenged everything they thought they knew about how the world works. Whatever force moved through those rooms, swinging lights and spinning paintings and dialing a number that no one asked to call, it left behind a body of evidence that continues to provoke, perplex, and fascinate to this day.

Sources

• Wikipedia search: “Rosenheim Poltergeist”
• Society for Psychical Research — SPR proceedings, peer-reviewed psychical research since 1882