In London, psychiatrist Clive Riordan suspects that his cool and polished wife, Storm, is having yet another affair. Abandoning his weekly card game, Clive returns home to find Storm with her latest lover, American Bill Kronin. To Storm's horror, Clive overpowers Bill and takes him away at gunpoint, then hides him in a secret location and taunts Storm with Bruce's condition. Scotland Yard gets involved when Storm contacts them about her missing dog.