A man befriends a fellow criminal as the two of them begin serving their sentence on a dreadful prison island, which inspires the man to plot his escape.

An occult investigator buys the 150-year-old skull of the Marquis de Sade, which turns out to be possessed by evil spirits.

Comic crime caper, set on a Greek island, starring Yul Brynner and Mitzi Gaynor.