Frank Lanier, known as "Monsieur Papa" (Claude Brasseur), lives alone with his little boy, Laurent, ten years old. He does the shopping, prepares breakfast, goes to the dry cleaners, sets the dinner table. How would Monsieur Papa do if he didn't have this son? Laurent, on the other hand, is not very good at spelling, but no one is perfect. Janine (Nathalie Baye) arises between two somewhat burnt hunting rabbits and three poorly tuned compound pasts. Laurent does not support the arrival of Janine in the life of his father. He is afraid that she will steal his father's love from him. And he redoubled his spelling mistakes. Two plane tickets for Bangkok found on the table are the last straw that will overflow the fragile family tranquility: Janine is on the trip but not Laurent. Monsieur Papa justifies himself as best he can. If he had the money he would also take his son. Never mind. Laurent announces to his father that he will soon bring him the sum of 10,000 francs. Monsieur Papa smiles. He's wrong: Laurent succeeds in the first solitary heist of a 10-year-old boy. A boy who, disappointed, will think for a long time, when his father returns the money, to the real motivations that make grown-ups act, but he will go to Bangkok.