When American couple Janet and Mike move to England for his business, she soon fears he's having an affair with his attractive secretary and decides to get back at him by pretending she has been unfaithful.

Benson is a Casanova who tricks women into having sex with him before leaving them. He is content with this game until he meets Jamison, a real operator who poses as an exiled prince and not only gets women to share his bed but also to give him money to help him fund his supposed counter-revolution.