Summary: A French count schemes to kill his wife and implicate a mild-mannered English schoolteacher whom he resembles (imdb)

Poster submitted by Gauntlet

Genres: Crime, Mystery

Country: UK

Directed By: Robert Hamer

Written By: Gore Vidal, Robert Hamer, Daphne Du Maurier

Starring: Peter Bull, Alec Guinness, Peter Sallis, Bette Davis, Nicole Maurey, Pamela Brown, Irene Worth, Geoffrey Keen, Eddie Byrne, Annabel Bartlett, Noel Howlett, Harold Kasket

More information at the Internet Movie Database