Parisienne mother Mathilde (Sandrine Kiberlain), who shares a large apartment with her surgeon husband Nico (Vincent Lindon), sometimes works at the legal business run by her mother (Francine Berge). With a stagnant sex life, the bored Mathilde prowls department stores to steal toys for her son. At a party with Nico, she realizes she's being watched by a doctor (Francois Berleand), and she spots him on the metro the following day. He tells her he's a psychiatrist, and they have their first session in a deserted restaurant. While the doctor's cure does appear to work for Mathilde, there's a trade-off: Nico's behavior becomes increasingly abnormal. This film has no connection to the earlier (1927, 1937) Hollywood films with the same title. Shown at the Venice and Toronto film festivals.