This House Possessed (1981)

A woman is sent to a mental institution after stabbing her classmate in an attempt to conjure an evil spirit called, Mercy Black. Fifteen years later she's released, and must save her nephew, who has become obsessed with the phenomenon.

A boy named Eli with a rare autoimmune disorder is confined to a special experimental clinic for his treatment. He soon begins experiencing supernatural forces, turning the supposedly safe facility into a haunted prison for him and his fellow patients.

A widower suspects that his seemingly perfect adolescent daughter is a heartless killer.

A woman is involuntarily committed to a mental institution where she is confronted by her greatest fear.

An Oxford Medical School graduate takes a position at a mental institution and soon becomes obsessed with a female mental patient, but he has no idea of a recent and horrifying staffing change.

On a trip to Colombia, a group of college students encounter a fifty-foot boa constrictor, hungry for blood.

A college student renting an old room in a boarding house discovers a plot by sinister, otherworldly forces to sacrifice his neighbor's infant.

Several years after the murderous events of the first movie left her father dead, Emma is now living with her aunt Angela and navigating high school. Angela’s husband begins to suspect that Emma may not be as innocent as she appears and suggests sending her off to boarding school. Meanwhile, a new girl at school seems to know Emma’s secrets, leaving Emma no choice but to slip back to her old ways and take care of her enemies by any means necessary.

Jordan Turner is an experienced 911 operator but when she makes an error in judgment and a call ends badly, Jordan is rattled and unsure if she can continue. But when teenager Casey Welson is abducted in the back of a man's car and calls 911, Jordan is the one called upon to use all of her experience, insights and quick thinking to help Casey escape, and not just to save her, but to make sure the man is brought to justice.

Shaun Russell takes her son and daughter on a weekend getaway to her late father's secluded, high-tech vacation home in the countryside. The family soon gets an unwelcome surprise when four men break into the house to find hidden money. After managing to escape, Shaun must now figure out a way to turn the tables on the desperate thieves and save her captive children.