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 | Michel Audiard | Writer |
| Writing | Auguste Le Breton | Novel |
| Writing | Gilles Grangier | Writer |
| Editing | Christian Gaudin | Editor |
| Production | Henri Jaquillard | Unit Manager |
| Camera | Louis Stein | Camera Operator |
| Art | Robert Clavel | Production Design |
| Costume & Make-Up | Yvonne Gasperina | Makeup Artist |
| Sound | Jean Rieul | Sound |
| Production | Walter Rupp | Production Manager |
| Camera | Robert Joffres | Still Photographer |
| Directing | Jacques Rouffio | Second Assistant Director |
| Art | Pierre Charron | Set Dresser |
| Crew | Michel Ygouf | Special Effects |
| Directing | Jacques Deray | First Assistant Director |
| Editing | Jacqueline Sadoul | Editor |
| Sound | Denis Kieffer | Music |
| Camera | Marc Champion | First Assistant Camera |
