Jayne Mansfield makes a departure from her usual roles to play tough girl Billy in this dark crime story. Set in London during the 1960s, the film casts Mansfield as the ringleader of a band of robbers. After a failed heist, her boyfriend, Jim (Anthony Quayle), is captured, but not before he stashes the booty in a secret hiding place. Now, Billy and her crew are on a desperate hunt to find the treasure before anyone else does...