83 mins | Comedy | June 10, 1964
83 mins | Comedy | June 10, 1964
| Producers | Les Films Copernic, Cimatel |
| Original title | Les durs à cuire ou Comment supprimer son prochain sans perdre l'appétit |
| Directors | Jacques Pinoteau |
| Writers | Michel Lebrun, Jacques Emmanuel, Jacques Pinoteau, Roger Pierre |
as Louis
as Germain Lormond
as Rossignol, le détective privé
as Josette
as Rika Lormond
as Le psychiatre
as Robert Darsac
as Le directeur du théâtre