Louis Bertain is the owner of a Paris garage which is the front for a robbery gang. He and his accomplices are careful to keep up a civic veneer by day, indulging in criminal activities only when "the red light is on" at night. This status quo is upset when one of the gang members becomes convinced that Louis' younger brother is a police informer.
Unfortunately the movie Speaking of Murder is not yet available on HBO Max.
| Directing | Gilles Grangier | Director |
| Crew | Louis Page | Cinematography |
| Production | Jacques Bar | Producer |
| Production | Alain Poiré | Producer |
| Writing | Auguste Le Breton | Novel |
| Writing | Michel Audiard | Writer |
| Writing | Gilles Grangier | Writer |
| Sound | Denis Kieffer | Music |
| Editing | Christian Gaudin | Editor |
| Editing | Jacqueline Sadoul | Editor |
| Art | Robert Clavel | Production Design |
| Costume & Make-Up | Yvonne Gasperina | Makeup Artist |
| Production | Henri Jaquillard | Unit Manager |
| Production | Walter Rupp | Production Manager |
| Directing | Jacques Deray | First Assistant Director |
| Directing | Jacques Rouffio | Second Assistant Director |
| Art | Pierre Charron | Set Dresser |
| Sound | Jean Rieul | Sound |
| Crew | Michel Ygouf | Special Effects |
| Camera | Marc Champion | First Assistant Camera |
| Camera | Robert Joffres | Still Photographer |
| Camera | Louis Stein | Camera Operator |
