In Paris, many citizens go to the precinct after the doors of their apartments have been sprayed with a 4 and the letters "clt". When a dweller is found mysteriously dead in his apartment, Detective Jean-Baptiste Adamsberg and his partner Danglard investigate...
Unfortunately the movie Have Mercy on Us All is not yet available on HBO Max.
| Directing | Régis Wargnier | Director |
| Writing | Ariane Fert | Adaptation |
| Writing | Ariane Fert | Scenario Writer |
| Writing | Harriet Marin | Adaptation |
| Writing | Harriet Marin | Scenario Writer |
| Writing | Julien Rappeneau | Adaptation |
| Writing | Julien Rappeneau | Scenario Writer |
| Writing | Lawrence Shore | Adaptation |
| Writing | Lawrence Shore | Scenario Writer |
| Writing | Fred Vargas | Novel |
| Production | Cyril Colbeau-Justin | Producer |
| Production | Jean-Baptiste Dupont | Producer |
| Sound | Patrick Doyle | Original Music Composer |
| Editing | Yann Malcor | Editor |
| Art | Olivier Radot | Set Decoration |
| Production | Pierre-Jacques Bénichou | Casting |
| Costume & Make-Up | Elisabeth Rousseau | Set Costumer |
| Production | David Giordano | Production Manager |
