Federico, Bruno, Pirro and Benny are married. The first three have beautiful wifes, Benny instead is married to a ugly woman. Ornella is Bruno's wife, she is very jealous and maintains that all men are deceitful, granted the opportunity, while Claudine, Federico's wife, maintains the contrary point of view. So they bet that Tosca, a former dancer, will succeed in seducing Federico.
| Directing | Luigi Comencini | Director |
| Costume & Make-Up | Adriana Berselli | Costume Designer |
| Writing | Edoardo Anton | Screenplay |
| Writing | Luigi Comencini | Screenplay |
| Writing | Marcello Fondato | Screenplay |
| Writing | Ugo Guerra | Screenplay |
| Camera | Armando Nannuzzi | Director of Photography |
| Editing | Nino Baragli | Editor |
| Production | Massimo Patrizi | Producer |
| Sound | Felice Montagnini | Music |
| Sound | Domenico Modugno | Music |
| Art | Piero Filippone | Production Design |
| Art | Luigi Gervasi | Set Decoration |
| Costume & Make-Up | Giovanni Palombi | Makeup Artist |
| Sound | Kurt Doubrowsky | Sound |
| Sound | Primiano Muratori | Sound |
| Camera | Marcello Gatti | Camera Operator |
| Directing | Anna Maria Montanari | Script Supervisor |