A police inspector comes into contact with people of all types and dispositions during a grueling murder investigation.
| Directing | Pietro Germi | Director |
| Editing | Roberto Cinquini | Editor |
| Costume & Make-Up | Bona Magrini | Costume Design |
| Camera | Leonida Barboni | Director of Photography |
| Writing | Alfredo Giannetti | Screenplay |
| Writing | Ennio De Concini | Screenplay |
| Writing | Pietro Germi | Screenplay |
| Writing | Carlo Emilio Gadda | Novel |
| Sound | Carlo Rustichelli | Original Music Composer |
| Production | Vincenzo Taito | Administration |
| Production | Eliseo Boschi | Production Secretary |
| Camera | Aiace Parolin | Camera Operator |
| Camera | Erico Menczer | Camera Operator |
| Camera | Sabino Tonti | Assistant Camera |
| Camera | Divo Cavicchioli | Still Photographer |
| Directing | Nino Zanchin | First Assistant Director |
| Directing | Mira Brtka | Second Assistant Director |
| Directing | Marcello Ugolini | Second Assistant Director |
| Directing | Fernando Arce | Second Assistant Director |
| Directing | Anna Gruber | Script Supervisor |
| Editing | Ruggero Mastroianni | Assistant Editor |
| Art | Andrea Fantacci | Assistant Set Decoration |
| Sound | Enrico Palmieri | Sound |
| Sound | Bruno Moreal | Sound |
| Sound | Fiorenzo Magli | Sound Recordist |
| Sound | Carlo Palmieri | Boom Operator |
| Costume & Make-Up | Leandro Marini | Makeup Artist |
| Costume & Make-Up | Raffaele Cristini | Makeup Artist |
| Costume & Make-Up | Amalia Paoletti | Hairstylist |
| Art | Carlo Egidi | Production Design |
| Sound | Luigi Urbini | Conductor |
| Production | Giuseppe Amato | Producer |
| Production | Guglielmo Colonna | Unit Manager |
| Directing | Alfredo Giannetti | Co-Director |
| Production | Mario Silvestri | Line Producer |
| Production | Angelo Rizzoli | Producer |
