Pierre Lachenay, a well-known literary critic, has an affair with a much younger stewardess. Once his wife learns about this she decides to shoot him.
In the seemingly happy life of a wealthy couple a drastic change occurs when two gangsters seeking refuge show up on their doorstep. A complicated mindgame begins between the couple and the criminals.
In the middle of cold war former MI5 agent gets involved in plot to destabilize the Soviet Union.