Marco is married to Carla, a rich businesswoman. She's off to Geneva for two days; he has a tryst with Monique, a Swedish air hostess. Carla's flight is canceled, so she heads home about to catch Mario en flagrant. Mario's salvation is Enrico, an old school mate and hapless salesman who shows up to beg Mario to buy toilets so he won't lose his job. Mario signs an order in exchange for Enrico's posing as Monique's husband. Carla invites them to stay overnight and join a business dinner party catered by Enrico's wife, Matilde. Enrico spends the evening trying to avoid her, Mario spends it chasing the willing Monique, and Carla wants to close a deal. Can this farce end happily?
| Actor | Role |
|---|---|
 Enrico MontesanoEnrico Tucci | Enrico Tucci |
 Claude BrasseurMario Spinosi | Mario Spinosi |
 Janet ÅgrenMonique Dubois | Monique Dubois |
 Claudine AugerCarla Rebaudengo Spinosi | Carla Rebaudengo Spinosi |
 Silvia DionisioMatilde Tucci | Matilde Tucci |
 Adriana Innocentisig.ra Duchamp | sig.ra Duchamp |
 Franca Scagnettivicina di casa Tucci | vicina di casa Tucci |
 Cesare Gellisig. Franzi | sig. Franzi |
 Geoffrey Coplestonsig. Duchamp | sig. Duchamp |
 Renato Morirag. Trocchia | rag. Trocchia |
 Roberto Della Casasommelier | sommelier |
 Renzo Ozzanomaitre | maitre |
 Luciano Bonannipassante sfortunato | passante sfortunato |
| LLetizia D'AdderioDomitilla Tucci | Domitilla Tucci |
| GGreta Vlietinckcameriera | cameriera |
 Francesco ParisiNot listed | Not listed |