After losing a finger in a work accident, an Italian worker becomes increasingly involved in political and revolutionary groups.
| Directing | Elio Petri | Director |
| Sound | Ennio Morricone | Original Music Composer |
| Camera | Luigi Kuveiller | Director of Photography |
| Editing | Ruggero Mastroianni | Editor |
| Writing | Elio Petri | Screenplay |
| Art | Dante Ferretti | Production Design |
| Art | Carlo Gervasi | Set Decoration |
| Costume & Make-Up | Franco Carretti | Costume Design |
| Costume & Make-Up | Pierantonio Mecacci | Makeup Artist |
| Writing | Ugo Pirro | Screenplay |
| Writing | Elio Petri | Story |
| Writing | Ugo Pirro | Story |
| Directing | Antonio Gabrielli | First Assistant Director |
| Directing | Franco Longo | First Assistant Director |
| Camera | Ubaldo Terzano | Camera Operator |
| Sound | Mario Bramonti | Sound |
| Camera | Antonio Annunziata | Assistant Camera |
| Lighting | Sergio Coletta | Gaffer |
| Camera | Sergio Emidi | Key Grip |
| Production | Claudio Mancini | Production Coordinator |
| Sound | Bruno Nicolai | Conductor |
| Production | Ugo Tucci | Executive Producer |
| Production | Mario Cotone | Production Supervisor |
| Directing | Lorenzo Magnolia | Second Assistant Director |
| Directing | Armenia Balducci | Script Supervisor |
| Camera | Claudio Sabatini | Assistant Camera |
| Camera | Sergio Strizzi | Still Photographer |
| Costume & Make-Up | Grazia De Rossi | Hairstylist |
| Sound | Mario Amari | Sound Mixer |
| Sound | Tonino Testa | Boom Operator |
| Editing | Gasperina Marani | Assistant Editor |
| Production | Stefano Pegoraro | Production Supervisor |