Come perdere una moglie e trovare un’amante (1978)

Director: Pasquale Festa Campanile
Studio: Cinematografica Alex

Starring: Johnny Dorelli, Barbara Bouchet, Carlo Bagno, Elsa Vazzoler, Felice Andreasi, Anny Papa, Gino Pernice, Ugo Maria Morosi, Toni Ucci, Enzo Cannavale, Stefania Casini, Dino Emanuelli, Tom Felleghy, Edda Ferronao, Marina Hedman

—Alberto deceived by his wife, goes to some place in the mountains to escape. There he meets a woman who was there for the same reasons that he was.
—The director of an Italian milk company, Alberto, lost his beautiful American wife after he caught her having a shower with the plumber. He is fixated on women’s breasts, but so is his psychiatrist, who calls his obsession a nostalgia for the mother’s breast. One of his psychiatrist’s other patients is a woman who found her cellist husband playing musical sex games with the family maid. In a protracted series of meetings, the two patients grow acquainted, and love grows up between them.
—Castelli is an advertising executive who, having returned home early due to a car accident with Eleonora Rubens, a young Dutch woman abandoned by her husband, surprises his American wife in intimacy with the plumber.

Alternative Title:
How to Lose a Wife and Find a Lover