1947, in France, Antoine and Antoinette, a young couple living in Paris, lead a monotonous existence: he works in a print shop while she is a shop assistant. But one evening, they regain hope: Antoine finds a winning lottery ticket in his girlfriend's handbag. He decides to cash it in, but loses his wallet. What follows is a series of twists and turns that redefine the couple's priorities while forcing them to remain optimistic.

Henri, the Man from Nantes, comes back to his country after a successful stay in the United States, where he was working for Liski, the drug dealer. With the fame of being a tough guy preceding him, he sets himself to the task of knowing why the French operations were not so profitable - and soon he is master of all links of the organization. He can now get it honed to perfection - or destroy it. Only... the Police are following his every step.