A detective is assigned to investigate the mysterious murders of some Supreme Court judges.
| Directing | Francesco Rosi | Director |
| Sound | Piero Piccioni | Original Music Composer |
| Costume & Make-Up | Enrico Sabbatini | Costume Design |
| Editing | Ruggero Mastroianni | Editor |
| Writing | Lino Iannuzzi | Screenplay |
| Writing | Leonardo Sciascia | Novel |
| Production | Alberto Grimaldi | Producer |
| Camera | Pasqualino De Santis | Director of Photography |
| Art | Andrea Crisanti | Production Design |
| Writing | Francesco Rosi | Screenplay |
| Writing | Tonino Guerra | Screenplay |
| Costume & Make-Up | Franco Freda | Makeup Artist |
| Directing | Gianni Arduini | First Assistant Director |
| Directing | Bruno Cortini | Second Assistant Director |
| Directing | Franca Invernizzi | Script Supervisor |
| Editing | Lea Mazzocchi | Assistant Editor |
| Editing | Ugo De Rossi | Assistant Editor |
| Production | Paolo Fabbri | Production Secretary |
| Production | Lynn Kamern | Production Secretary |
| Production | Sergio Giussani | Administration |
| Production | Anna Maria Novelli | Administration |
| Camera | Mario Cimini | Camera Operator |
| Camera | Marcello Mastrogirolamo | Assistant Camera |
| Camera | Adolfo Bartoli | Assistant Camera |
| Camera | Sergio Strizzi | Still Photographer |
| Costume & Make-Up | Adalgisa Favella | Hairstylist |
| Sound | Mario Bramonti | Sound |
| Sound | Giuseppe Muratori | Boom Operator |
| Sound | Renato Marinelli | Sound Effects |
| Art | Arrigo Breschi | Set Decoration |
| Art | Marco Dentici | Set Decoration |
| Costume & Make-Up | Giovanni Viti | Assistant Costume Designer |
| Lighting | Luciano Leoni | Gaffer |
| Camera | Aldo Colanzi | Key Grip |
| Sound | Romano Checcacci | Sound Mixer |
| Production | Alessandro von Norman | Line Producer |
| Production | Franco Ballati | Unit Manager |
| Art | Renato Guttuso | Set Decoration |
| Art | Mario Schifano | Set Decoration |
