My Little Sister (1971)

Nothing is what it seems when a twisted one-night stand spirals into a serial killer’s vicious murder spree.

Vice detective Bob Hightower finds his ex-wife murdered and daughter kidnapped by a cult. Frustrated by the botched official investigations, he quits the force and infiltrates the cult to hunt down the leader with the help of the cult’s only female victim escapee, Case Hardin.

Remy, a seemingly naive and devout young woman, finds herself cast out from her religious cult. With no place to turn, she immerses herself into the underground world of truck stop sex workers. Under the watchful eye of their matriarch and an enigmatic local lawman, Remy navigates between her strained belief system and the code to find her true calling in life.

A Secret Service Agent is held captive in the trunk of a car and endures high-speed mental and physical torture as terrorists attempt to extract needed information for their sinister plot.

An orphaned girl is rescued from a satanic ritual and taken to Saint Catherine Institute for homeless youth. There she will learn new skills while facing demons that stalk her.

When John Doe is convicted of being a vigilante serial killer, a vigilante group named 'Speak for the Dead' emerges in support of John's cause—elevating the debate about justice versus vengeance.

Scientists create a genetic clone of a serial killer in order to help catch the killer, teaming up with two cops.

Billy Wong is a New York City cop whose partner is gunned down during a robbery. Billy and his new partner, Danny Garoni, are working security at a fashion show when a wealthy man's daughter, Laura Shapiro, is kidnapped. The Federal authorities suspect that Laura's father is involved with Mr. Ko, a Hong Kong drug kingpin, so the NYC police commissioner sends the two cops to Hong Kong to investigate.

Reclusive and controversial author Bruce Cogburn is drawn out of hiding by an obsessive fan, forcing the novelist to confront a past that he thought he could escape, and to account for events set in motion by his bestseller decades earlier. Cogburn's search for who is behind the manipulation and mental torment he encounters leads to an emotional roller-coaster ride full of fear and danger, where things are not always as clear as they seem to be, and where past deeds can have dire consequences.

On the surface it's believed to be another urban legend - a supernatural being from the afterlife is violently killing anyone who cheats on their significant other in the small college town of Silvercreek, Pennsylvania. But the town's unusually high suicide rate is finally convincing both locals and college students that everything is not as it seems. When Maeve - a female college student - sleeps with Charlie, the married man of the host family she is staying with, both sense the deadly curse is closing in on them. Unable to get anyone to believe them, Maeve and Charlie seek out a local history student to help find answers and figure out a way to defend themselves. It all comes undone, however, as several people are horrifically killed by the savage being - one-by-one at a rapid pace. Eventually, Maeve, Charlie and the few survivors band together in an attempt to defeat the monster once and for all.