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.
| Directing | Ugo Tognazzi | Director |
| Writing | Antonio Leonviola | Screenplay |
| Writing | Enzo Jannacci | Dialogue |
| Camera | Alfio Contini | Director of Photography |
| Sound | Armando Trovajoli | Music |
