Mario Marani is a well-respected lawyer in late 70s Milan, with a wonderful wife and a high social life. But Mario has a problem: every time he sees his wife talking to one of their friends he immediately visualises them in a hot affair. His jealousy spirals out of control, until a young man who hides inside their flat crosses his path.
| Actor | Role |
|---|---|
 Ugo TognazziMario Marani | Mario Marani |
 Edwige FenechFrancesca Marani | Francesca Marani |
 Paolo BonacelliAntonio Marani | Antonio Marani |
 Piero MazzarellaConcierge | Concierge |
 Yanti SomerPaola | Paola |
 Mara VenierMrs. Bocconi | Mrs. Bocconi |
 Luc MerendaRecrosio | Recrosio |
 Laura Bonaparteamante di Recrosio | amante di Recrosio |
 Mircha CarvenLorenzo Macchi | Lorenzo Macchi |
 Pietro BrambillaDuccio | Duccio |
 Orazio Orlandoavvocato Borderò | avvocato Borderò |
 Massimo SeratoCarlo Bocconi | Carlo Bocconi |
| BBeppe ViolaCommissario di Polizia | Commissario di Polizia |
 Franco Odoardidirigente Confindustria | dirigente Confindustria |
 Guido Nicheliospite | ospite |
 Angelo Pellegrinoassistente | assistente |
 Ricky TognazziGino | Gino |