Watch full movie: Gaslight (1944), online free.
Years after her aunt was murdered in her home, a young woman moves back into the house with her new husband. However, he has a secret which he will do anything to protect, even if that means driving his wife insane.
Director: George Cukor
Writers: John Van Druten (screenplay), Walter Reisch (screenplay),
Stars: Charles Boyer, Ingrid Bergman, Joseph Cotten