Tridan Lagache has spent his life at Club Med, changing friends every eight days. At 50, he resigns from the Mexican holiday resort where he was born, determined to reunite—42 years later—with his childhood love, Violette. He arrives in Paris, naïve and lost but happy to be hosted by Louis, a half-brother he never knew existed. To get rid of the overly clingy Tridan, Louis begs one of his flings, Roxane, to pretend to be Violette, whom Tridan believes he recognizes at first sight.