'' Family Plot '' is a 1976 American Technicolor comedy thriller that was the final film directed by Alfred Hitchcock . It was based on Victor Canning 's novel '' The Rainbird Pattern '' , which Ernest Lehman adapted for the screen . The film stars Karen Black , Bruce Dern , Barbara Harris and William Devane ; it was screened at the 1976 Cannes Film Festival , but was not entered into the main competition
1976 Cannes Film Festival
1976 Cannes Film Festival
Family Plot