Black Christmas (1974)

Black Christmas (originally titled Silent Night, Evil Night in the United States and retitled Stranger in the House on television screenings) is a 1974 Canadian slasher film produced and directed by Bob Clark, and written by Roy Moore. It stars Olivia Hussey, Keir Dullea, Margot Kidder, and John Saxon. The story follows a group of sorority sisters who receive threatening phone calls and are eventually stalked and murdered by a mentally ill killer during the Christmas season.