Ruby

Sixteen years post Ruby Claire's boyfriend's murder, gruesome killings erupt at her drive-in movie theatre. Her mute daughter Leslie's odd behavior escalates, and a psychic warns of revenge from beyond.

Ruby is a 1977 drama horror movie directed by Curtis Harrington, starring Piper Laurie, Janit Baldwin, Roger Davis. It holds an IMDb rating of 4.5/10 from 1,338 votes and runs 1h 25m.