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After the birth of her third child, Christelle (Marilyne Canto) feels overwhelmed. During a panic attack, she flees her apartment, leaving behind her newborn. When her husband, Laurent (Patrick Bruel), and her sons return home, she's nowhere to be found. Little does Laurent know that Christelle has been taken in by her upstairs neighbor (Dominique Blanc). Laurent searches for her, starting at her mother's house, where he's confronted by Christelle's irate relatives. Wikipedia