The Killer Is One of Thirteen (1973)

An aging, reclusive Southern belle plagued by a horrifying family secret descends into madness after the arrival of a lost relative.

When an unsuspecting woman stops at a remote gas station in the dead of night, she's made the plaything of a sociopath sniper with a secret vendetta. To survive, she must not only dodge his bullets and fight for her life, but also figure out who wants her dead and why.

Seemingly mild-mannered Henry Morrison has just murdered his entire family. After adopting a new identity and skipping town, he begins building a new relationship with a widow and her teenage daughter. However, he soon begins struggling to hide his true identity and maintain a grip on reality.

A frustrated Boston detective searches for the maniac responsible for mutilating a number of university coeds.

After picking up a traumatized young hitchhiker, five friends find themselves stalked and hunted by a chainsaw-wielding killer and his family of equally psychopathic killers.

The recently widowed mother of two, Sarah, is desperate to know who murdered her husband in front of her young son, rendering him mute. Coerced into helping a low-life drug dealer stash narcotics stolen from the local Mr. Big, she's forced into taking drastic action to protect her children, evolving from downtrodden submissive to take-charge vigilante.

Wes Block is a detective who's put on the case of a serial killer whose victims are young and pretty women. The murders are getting personal when the killer chooses victims who are acquaintances of Block. Even his daughters are threatened.

Fifteen years after murdering his sister on Halloween Night 1963, Michael Myers escapes from a mental hospital and returns to the small town of Haddonfield, Illinois to kill again.

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.

Two women—Diana, a flamboyant and ruthless thief, and Evie, a seemingly innocent young woman with a troubled past—become embroiled in a series of horrific murders on the island of Malta.