A deadly look into the savage world of gangsters. The aftermath of a holdup turns into a game of deceit and doublecross. A vengeful woman brings about the destruction of the entire gang of ruthless killers.

A young woman is hired to care for an elderly man who lives on an island off the Greek coast. When she arrives there the man warns her that his daughters are evil and dangerous. The woman discovers that one of the daughters is a crazed nymphomaniac who pursues, and seduces, everyone in the house, including her crippled sister.