Michel takes up pickpocketing on a lark and is arrested soon after. His mother dies shortly after his release, and despite the objections of his only friend, Jacques, and his mother's neighbor Jeanne, Michel teams up with a couple of petty thieves in order to improve his craft. With a police inspector keeping an eye on him, Michel also tries to get a straight job, but the temptation to steal is hard to resist.

A French wife takes a zoo chimp named Max to be her lover.

Marcel Marx, a former bohemian and struggling author, has given up his literary ambitions and relocated to the port city Le Havre. He leads a simple life based around his wife Arletty, his favourite bar and his not too profitable profession as a shoeshiner. As Arletty suddenly becomes seriously ill, Marcel's path crosses with an underage illegal immigrant from Africa, who needs Marcel's help to hide from the police.