Basil Dearden's final film is a psychological thriller, adapted from an episode of the Alfred Hitchcock Presents television series. Roger Moore stars as wealthy business executive Harold Pelham, who becomes involved in a terrible car accident. While recovering from his injuries, his alter ego is unleashed and begins to live Pelham's life where he left off. When Pelham returns to his home and his job, he discovers his alter ego has not only undermined his business, but began an affair with a minor acquaintance and revitalized his previously unexciting sex life with his wife. This was Moore's final film before he took over the role of James Bond with Live and Let Die.