Simon, a depressed hitman, tries to hang himself in a forest. Bernard, a young man with no history who passes by by chance, saves him. The old man, sick, cannot drive without risking an accident. Claiming to be a rodent controler, he hires Bernard to take him to Cap d'Agde. Simon, lonely and cynical, is forced to travel in the company of this talkative and confusingly optimistic driver.