For the rest, besides Victor Lanoux - as a nasty character, an awesome performance - and Jean Louis Trintignant, it is a perfect sleeping film, which topic could remind LE CORPS DE MON ENNEMI, not exactly the same story but a same kind of atmosphere. Claude Chabrol like schemes are not far. Yes, that's it, the Chabrol's films, I guess, inspired this screenplay, and also maybe because of the presence of Stephane Audran - Chabrol's favourite actress. I know, it is adapted from a Max Gallo's novel, that I have not read, but the result is a bit boring and the ending saves the whole for someone like me. It looks like the end of LE SECRET, from director Robert Enrico. I don't know the director, never heard of him before. The usual forgettable French crime movie from the early eighties but with some seventies style, not eighties.
