When Michael Calls (1972)

On Halloween night, a sorority house is overrun with ghosts, while a vengeful housemother goes on a killing spree.

When Cecilia's abusive ex takes his own life and leaves her his fortune, she suspects his death was a hoax. As a series of coincidences turn lethal, Cecilia works to prove that she is being hunted by someone nobody can see.

Troubled divorcee Mary Kee is tormented by a series of sinister phone calls from a mysterious woman. When the stranger reveals she's calling from the past, Mary tries to break off contact. But the caller doesn't like being ignored, and looks for revenge in a unique and terrifying way...

After witnessing a bizarre, traumatic incident involving a patient, Dr. Rose Cotter starts experiencing frightening occurrences that she can't explain.

A detective suffering from a personal loss receives a call from his recently deceased niece. Being able to communicate across time, the two work together to try and stop the crime before it occurs.

A student babysitter has her evening disturbed when the phone rings. So begins a series of increasingly terrifying and threatening calls that lead to a shocking revelation.

A mother concerned about her young son's disturbing behavior thinks something supernatural may be affecting him.

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.

When teen magician Max crosses paths with the sinister Jester on Halloween night, she must outsmart a supernatural killer whose magic is all too real and whose tricks always end up in blood.

Teenage friends Kit and Libby make prank phone calls for fun but then find themselves involved in a brutal double murder committed by one of their targets.