During a summer in a french southern village, two girls meet : Laure sells antique linen while Ophélie runs an art gallery. Although they have nothing in common, they grow closer as they talk to each other and their opposing characters become interwined.

Despite Lise's advice, Claire decides to celebrate Christmas with Leon, a young outcast who claims to live outside the system. They agree to organize an anticapitalist Christmas Eve, prohibiting all expenses. Meanwhile, Mathias delivers presents as Santa for a well-paid temporary assignment.