Malevolent non-human intelligences documented across every major religious and cultural tradition. Distinguished from ghosts by their inhuman nature, their apparent goal of harm, and their resistance to removal. Associated with possession, physical attacks, and progressive psychological deterioration.
Demonic entities appear in every major religious tradition. The Abrahamic faiths describe hierarchies of fallen angels led by Satan. Hindu texts describe Asuras. Mesopotamian clay tablets from 2000 BC describe Pazuzu and an entire class of malevolent spirits requiring exorcism. The consistency of description across unconnected cultures suggests either a genuine phenomenon or a deep-seated universal psychological archetype.
The Catholic Church maintains an official training programme for exorcists and appoints a chief exorcist in Rome. Former Vatican exorcist Father Gabriele Amorth estimated he performed over 70,000 exorcisms in his lifetime. The Diagnostic and Statistical Manual of Mental Health (DSM) now includes cultural context clauses for possession-related presentations.
Contemporary investigators note that demonic cases follow a consistent three-stage progression: infestation (activity in the environment), oppression (psychological and physical attack on an individual), and possession (apparent loss of control over the body). The Ammons family case in Gary, Indiana (2011-2012) was documented by a police captain and a child welfare worker, both of whom witnessed apparent levitation.
The Exorcism of Roland Doe
In January 1949, a 14-year-old boy referred to as "Roland Doe" (a pseudonym) began exhibiting phenomena that would become one of the most thoroughly documented demonic possession cases in American history. The case was observed by multiple Jesuit priests and physicians and directly inspired William Peter Blatty's novel "The Exorcist" (1971).
The phenomena began after the boy used an Ouija board to attempt contact with a recently deceased aunt. Objects in his room began moving. Scratching sounds emerged from the walls. His mattress levitated and moved across the room while he sat on it. His body produced words and symbols that appeared to claw themselves out from beneath the skin — observed by medical personnel who had no explanation. He exhibited violent reactions to holy water that could not be explained by suggestion, as the water was substituted without his knowledge in tests.
Multiple Jesuit priests from Georgetown University and later St. Louis University participated in the exorcism rites over a period of weeks. The Reverend William Bowdern maintained a diary throughout, which was later obtained by journalist Thomas Allen. The diary records over 30 exorcism sessions, during which the boy spoke in a guttural voice in Latin phrases he could not have known, displayed knowledge of private information about those present, and on one occasion broke free from restraints and tore a bedspring loose, inflicting a wound on one of the priests that required stitches.
The exorcism was declared complete in April 1949 after the boy reported a vision of St. Michael driving the possessing entity away. He subsequently had no memory of the events and went on to live a normal life. The attending priests maintained their accounts to the end of their lives. Bowdern said of the case: "I am convinced that the boy was truly possessed by the devil."
The Ammons Family Possession
The Ammons case is notable for being one of the few alleged possession cases documented simultaneously by a licensed clinical social worker, a police captain, and a physician — none of whom were disposed to paranormal explanations.
The Ammons family — Latoya Ammons, her mother Rosa Campbell, and Latoya's three children — moved into a rental house in Gary, Indiana in November 2011. Almost immediately, the family reported strange phenomena: large black flies clustering despite winter temperatures, wet footprints appearing on the basement floor, and the sounds of someone walking in the basement at night. Within weeks, the children began exhibiting disturbing behaviour: speaking in guttural voices, levitating, and going into trance-like states.
The case came to the attention of authorities when the youngest child was observed by a licensed social worker, Valerie Washington, and a nursing supervisor at a local hospital. Washington filed an official report stating that she witnessed one of the boys walk backward up a wall and onto the ceiling — a feat she described as physically impossible — in the presence of the nursing supervisor and herself. Her account was consistent with a separate account from Rosa Campbell, who was present.
Captain Charles Austin of the Gary Police Department was assigned to investigate. He described himself as a sceptic but stated in the official record that during his visit to the house, he witnessed shadows moving independently, felt a presence push him, and heard a voice he could not explain. A local clergyman performed rites at the house. The family was eventually relocated by the Department of Child Services. The rental house was later investigated by the production team of the television programme "Ghost Adventures," who documented anomalous activity in the same rooms described by the Ammons family.
The Earling Possession
The Earling case is one of the most extensively documented demonic possession cases in Catholic records. In 1928, a 40-year-old woman referred to as "Emma" was brought to the Franciscan Convent in Earling, Iowa by Father Theophilus Riesinger, who had already performed a prior unsuccessful exorcism on her in her home diocese.
The exorcism at Earling lasted for 23 days spread over two sessions in 1928. Father Riesinger maintained detailed notes, later published as "Begone Satan" by Father Carl Vogl in 1935. Witnesses included the convent's pastor, Father Joseph Steiger, and multiple nuns. Their accounts describe Emma displaying knowledge of private sins and biographical details of those present that she could not have known. She reportedly spoke simultaneously in multiple voices with distinct personalities, one identifying itself as a historical figure and describing events in 16th-century Latin.
Physical manifestations documented by witnesses included Emma's body becoming rigid and rising off the bed without support, her face distorting into unrecognisable shapes, and her body emitting a foul odour that permeated the building. She reportedly consumed no food or water for the duration of the sessions without any physical deterioration. When sprinkled with holy water that was secretly substituted with plain water, she reportedly showed no reaction — but reacted violently to the genuine article.
The case was treated as authentic by the Catholic Church, which used it in training materials for exorcists for decades. Father Riesinger performed the case as an officially sanctioned exorcism under diocesan authority. Father Steiger later broke down during an interview about the events, stating he had seen things no person should have to see.
My partner and I booked room 217 at the old Beaumont Hotel not knowing about its history. Around 3 AM I woke to a drop in temperature so severe I could see my breath. Standing near the wardrobe was a translucent figure in what looked like Victorian-era clothing — female, facing away from us. I managed to grab my phone and get about 8 seconds of video before it simply faded. The hotel staff the next morning went pale when I described her. Apparently a woman named Clara died in that room in 1912. The video is shaky but she's clearly there.
We moved into our house in September and things started small. Knocking from inside the walls at night. The smell of cigarette smoke in rooms where no one has ever smoked. Then two weeks ago it escalated: kitchen cabinets all opened simultaneously while we were eating dinner. Last Thursday a hardcover flew off the bookshelf and hit the opposite wall with enough force to dent the drywall. We have two kids (7 and 10) and we are genuinely frightened. I've set up cameras throughout the house. On review I can see objects moving but no one near them. Our 7-year-old says she talks to "the man with the grey face" in her room at night. We're not religious people but we are running out of rational explanations.
This happened two nights ago and I am still not okay. I set up a trail camera in my basement after hearing dragging sounds for three weeks. I checked the footage this morning expecting to find a raccoon or a burst pipe. Instead, frame 847 shows a figure standing in the far corner facing the wall. Approximately 6 feet tall. Completely white — not wearing white, white. Like the colour had been removed from it. It was there for exactly one frame (the camera shoots every 3 seconds) and gone in the next. I have lived alone in this house for six years. The basement door was locked from the inside when I went down this morning. I don't know what to do. I'm posting the image now.