The movie revolves around the story of a wealthy and successful businessman, Marco (played by Marco Vitale), who becomes disillusioned with his marriage to a beautiful young woman, Patrizia (played by Patrizia Morale). Marco becomes increasingly attracted to a mysterious and alluring stranger (played by Monica Stagni), which leads to a series of intense and sensual encounters.
"Games for an Unfaithful Wife" (original Italian title: Gioco per una moglie infedele) is a 1976 Italian erotic drama directed by Pasquale Festa Campanile. It belongs to the commedia sexy all'italiana and erotic melodrama trends of 1970s Italian cinema, mixing sexual themes with psychological tension and social commentary.
The film’s most infamous sequence involves a "game" where Robert invites his business partner over while Linda thinks Robert is away. Robert watches through the mirror as Linda seduces the partner, only to reveal himself at the climax (both narrative and literal) to humiliate everyone involved. The title card at the end reads: "Checkmate."