Gianni, a nightwatchman from Milan, comes home and finds unexpectedly Sandro, an old friend who just came out of prison after eight years of detention, waiting for him on the stairs. Sandro offers him to recover some money that he had hidden before getting arrested, in exchange of a considerable figure. Unfortunately something goes wrong. After giving him the established figure, Sandro asks about Antonio, once their partner in crime, and suggest to pay him a visit. They find him at the restaurant with Helene, Sandro's old flame, who has become Antonio's wife and the disagreements begin immediately to surface. As a matter of fact, Sandro accuses his brother to be the responsible of his arrest; they will later find out that Antonio is even involved in the child trafficking. After having denounced him, Gianni accompanies Sandro to the train station but, when they're about to say goodbye, they find out that one of the children was hiding in the trunk of their car.