A middle-aged professor's young bride and his assistant plan to commit a double murder disguised as a "Crime Passionel", but discover too late that one of their intended victims has become a fellow conspirator.
Fred Midway may be a bit short on brains but he's got plenty of ambition. However, before he can gain promotion as a salesman he must make his family more socially acceptable.
TV journalist Tab Holland assists Scotland yard with the murder of a reclusive millionaire whose corpse is discovered locked in a vault. The key to the vault is mysteriously found on the table beside the corpse.
On the French Riviera, movie producer Max Poulton is on location shooting a film starring his lover, Gina Bertini. But when the rueful Max ends his fling with Gina to return to his loyal wife, Carol, the jilted actress threatens to reveal details of their affair to Carol. Later, at a party at Max's villa, investigator Carliss arrives with news that Gina has been killed and that Max is a murderer suspect.
