Odile and Louis are leading a happy, bucolic life with their two children in the French countryside near the Swiss mountains. It is Odile’s thirty-fifth birthday, and Louis’s thirty-fifth birthday is a few weeks away. Then the story shifts back to their early years: Louis, just freed from his military service and at loose ends, is taken up by a shady character who brings him to Paris to do some work for a friend who manages a garage; Odile, an aspiring singer, is at the mercy of the kindness and unkindness of strangers. In a Paris that is steeped in crime and full of secrets, they find each other and struggle together to create what, looking back, will have been their youth.