Wild, fanciful but ultra-tense psycho-drama from a novel by Georges Simenon, who is probably responsible for the weird right wing subtext about the concept of a Nietzschian Übermensch! Plus the author was no stranger to his own extreme marital disharmony....
Well anyway, it's a crime thriller. Jean-Pierre Darroussin stars as a bad tempered middle aged wage slave stuck in a rut who intuits his upwardly mobile, professional wife (Carole Bouquet) is having an affair and feels her antagonism is enfeebling his masculinity.
On a long drive across country he asserts his macho individualism by drinking whisky like a dipsomaniac... until she decides to take the train... and then disappears. Ultimately the antagonistic husband redeems himself via a coincidence so massive, it's staggering!
What we're here for is the awesome final twist which gives the unhappy couple another last chance, which works so well because director Cédric Kahn unravels it with some subtlety. Warning- don't turn this into a drinking game, as you'll need a stomach pump.