A family fears their Indianapolis mansion is haunted by the serial killer who previously resided there.

The story of an alleged alien abduction is told by the people who were involved.

The story of a psychic detective who helped track down a serial killer in New Jersey.

A family believe they are being haunted by a homicidal foster father and a sister trying to prove she's innocent of murdering her brother.

The parents of five girls claim that malevolent forces terrorized them physically and even put a life-threatening curse on the family, which resulted in a near-fatal incident.

An exorcist is schooled in the ancient procedure at the Vatican in Rome.

The origins of a Dybbuk Box, which is said to contain a malevolent spirit, is investigated by its owner after it supposedly created havoc in the lives of two previous owners.

The story of eight Marines who were sent to guard an ancient and much fought-over outpost in Afghanistan, where they claim they faced a ghostly enemy.

An academic and his wife buy a Southern home only to learn that a jilted socialite committed suicide there and is now believed to haunt the house.

Bill Vaile, a former NASA engineer comes face to face with the paranormal after witnessing what looked like an exorcism while at a job site.

Senior American airmen see alien crafts near a nuclear base in Suffolk, England.

A woman who is consumed by guilt over her grandfather's death believes he is haunting her and her family.

Season 3 begins with the story of a firefighter's widow who feared for the safety of her daughters after unknowingly purchasing a home that once belonged to devil worshipers.

Three female college students claim that they are being terrorized by a demon woman hell-bent on tearing their lives apart.

Three brokenhearted women renting an old house together seek a fresh start, but instead get what they believe is a supernatural tormentor who is preaching about hell and brimstone.

The story of a coven of witches who supposedly trapped people in a Southern plantation house that's now allegedly haunted.

The Pracht family encounters 19th-century murderer Stephen Richards in their new home in the plains of Nebraska.

When a woman rents out the dilapidated guesthouse of her new home after covering up bullet holes and a mysterious hole in the floorboards, strange events start to occur.

A family is confronted by a vicious poltergeist in their new California home; a former deputy sheriff's encounter with a mysterious beast in the wilderness of Oregon is detailed.

Recounting strange phenomena at Salt Lake City's Capitol Theatre

Medical professionals from different hospitals in the U.S. reveal their alleged encounters with ghosts.

The story of a property developer who turned an old lakeside mansion into apartments unaware that the home was once used as a refuge for tuberculosis sufferers in the 1920s.

A spirit masquerades as a child.

A stroke victim and her family seek a fresh start in a new country home, but instead end up fighting for their lives and sanity when they encounter what they believe to be a band of terrifying Native American spirits.

Three young college students recall moving into a rental property in a rundown Savannah neighborhood and coming face-to-face with the ghost of a demented crack fiend.