Summary: A psychiatrist plots to murder his wife so he can be with his mistress, but his wife mysteriously disappears before he can carry out his plan (imdb)

Genres: Suspense/Thriller, Crime

Country: UK

Directed By: Sidney Hayers

Written By: Ivan Goff, Philip Levene

Starring: Christopher Lee, Jon Finch, Tony Beckley, Judy Geeson, Jane Merrow, Dilys Hamlett, Colin Jeavons, David Trevena, Adrian Cairns, Daphne Neville, Hubert Tucker

More information at the Internet Movie Database