When his young son is killed in a hit and run accident, Charles Thenier resolves to hunt down and murder the killer. By chance, Thenier makes the acquaintance of an actress, Helène Lanson, who was in the car at the time of the accident. He then meets Helène’s brother-in-law, Paul Decourt, a truly horrible individual.
Unfortunately the movie This Man Must Die is not yet available on HBO Max.
| Writing | Nicholas Blake | Novel |
| Editing | Jacques Gaillard | Editor |
| Directing | Claude Chabrol | Director |
| Writing | Claude Chabrol | Screenplay |
| Camera | Jean Rabier | Director of Photography |
| Writing | Paul Gégauff | Screenplay |
| Production | André Génovès | Producer |
| Sound | Pierre Jansen | Original Music Composer |
| Art | Guy Littaye | Production Design |
| Editing | Catherine Bernard | Assistant Editor |
| Directing | Jacques Fansten | Assistant Director |
| Sound | Louis Devaivre | Foley |
| Camera | Paul Bonis | First Assistant Camera |
| Camera | Roger Robert | Grip |
| Costume & Make-Up | Louis Bonnemaison | Makeup Artist |
| Production | Alain Belmondo | Unit Manager |
| Directing | Michel Dupuy | Assistant Director |
| Sound | Guy Chichignoud | Sound Engineer |
| Sound | Dominique Zardi | Music |
| Production | Patrick Delauneux | Unit Manager |
| Camera | Claude Zidi | Camera Operator |
| Sound | Alex Pront | Sound Mixer |
| Sound | Monique Fardoulis | Sound Editor |
| Production | Georges Casati | Production Manager |
