Paul Decker murders his wife in her Italian villa by drugging her milk and asphyxiating her by gas. He cleverly locks the bedroom from the inside and hides inside a trapdoor in the floor until after the body is discovered by servants. He uses a scuba snorkel connected to tubes on the outside to breathe during the ordeal. Decker's stepdaughter Candy suspects him immediately, especially since no suicide note was found. She also is convinced that he murdered her father years before, but her accusations fall on deaf ears. The ruthless Decker even poisons the family spaniel when the pet takes too great an interest in the mask and realizes he will ultimately have to get rid of Candy too.

Starring:

Armand Guinle, Betta St John, David Ritch, Gregoire Aslan, Henri Vidon, Irene Prador, Mandy Miller, Marie Burke, Peter van Eyck, Robert Rietty, William Franklyn

Genre:

Crime, Drama, Mystery, Thriller