Emile Chenal and his wife, Françoise, leaned on boxing manager Jim Fox Warner to cough up the considerable sum of money that he owes them, with both the police and the mob circling the situation. In the same hotel, Inspector Neveu looks into a murder that took place years before, and his storyline overlaps with the arc of the Chenals.
You can now watch Detective online on the following streaming providers in the United States.
| Writing | Alain Sarde | Screenplay |
| Writing | Philippe Setbon | Screenplay |
| Directing | Jean-Luc Godard | Director |
| Writing | Jean-Luc Godard | Screenplay |
| Writing | Anne-Marie Miéville | Screenplay |
| Production | Christine Gozlan | Producer |
| Production | Alain Sarde | Producer |
| Camera | Louis Bihi | Director of Photography |
| Camera | Pierre Novion | Director of Photography |
| Camera | Bruno Nuytten | Director of Photography |
| Editing | Marilyne Dubreuil | Editor |
| Production | Dominique Besnehard | Casting |
| Costume & Make-Up | Jean-Pierre Eychenne | Makeup Artist |
| Production | Reynald Calcagni | Production Manager |
| Production | Christine Gozlan | Production Manager |
| Production | François Menny | Unit Manager |
| Directing | Richard Debuisne | Second Assistant Director |
| Sound | Bernard Chaumeil | Sound |
| Sound | Pierre Gamet | Sound |
| Sound | Bernard Le Roux | Sound |
| Sound | Jean-Marc Lentretien | Sound Mix Technician |
| Sound | François Musy | Sound |
| Lighting | Christian Weyers | Gaffer |
| Editing | Philippe Tourret | Color Timer |
| Sound | Jean Schwarz | Music Supervisor |
| Directing | Hélène Sébillotte | Script Supervisor |
