A group of "respectable" people are all partly responsible for the suicide of a servant girl. They are pounced upon by a wily blackmailer, who knows that these people will pay dearly rather than inform on themselves or others.
| Directing | Mario Monicelli | Director |
| Directing | Steno | Director |
| Writing | Franco Brusati | Screenplay |
| Writing | Mario Monicelli | Screenplay |
| Writing | Ivo Perilli | Screenplay |
| Writing | Steno | Screenplay |
| Writing | Ivo Perilli | Story |
| Production | Carlo Ponti | Producer |
| Production | Dino De Laurentiis | Producer |
| Sound | Armando Trovajoli | Original Music Composer |
| Camera | Aldo Tonti | Director of Photography |
| Camera | Luciano Trasatti | Director of Photography |
| Art | Flavio Mogherini | Production Design |
| Art | Piero Gherardi | Set Decoration |
| Production | Nando Pisani | Production Manager |
| Costume & Make-Up | Otello Fava | Makeup Artist |
| Sound | Armando Trovajoli | Conductor |
| Production | Bruno Todini | Production Coordinator |
| Production | Fernando Cinquini | Production Supervisor |
| Editing | Adriana Novelli | Editor |
| Directing | Ines Bruschi | Script Supervisor |
| Production | Pio Angeletti | Production Secretary |
| Sound | Giovanni Borcelli | Sound |
| Sound | Paolo Uccello | Sound |
| Directing | Gillo Pontecorvo | First Assistant Director |
