Invited for the weekend to the home of a fellow Bridge Expert, Emma finds herself trapped in a house designed to send her mad. Her tormentor is Max Prendergast, a man she befriended and then betrayed in Berlin some time before. Then Steed came to the rescue but now he's at home nursing a sprained ankle.
Elenco: Patrick Macnee , Honor Blackman , Diana Rigg , Linda Thorson , Ian Hendry .