In an island, a young couple, Violet and Peter, offers a sex swap with fellow guest Olivia, a hot lesbian. What starts as a mutually-beneficial deal turns rough and tumble when Peter demands more than what he bargained for.
When three women are brutally murdered in four nights, private detective John Duval, ex-lieutenant commander in Naval Intelligence, finds himself the prime suspect in a police hunt for the sexual killer stalking Portsmouth's silent hours…