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.

When three women are brutally murdered in four nights, private investigator John Duval, an ex-lieutenant commander in the Royal Navy and Naval Intelligence, finds himself the prime suspect in a police hunt for the sexual killer stalking the shadows of Portsmouth's silent hours.