François Sentinelle has two lives. By day, he is the most famous cop of Réunion Island, known for his tough methods and flowery shirts, pursuing criminals in his famous yellow defender. But the rest of the time, Sentinelle is also a charming singer.

Tridan Lagache has spent his whole life at Club Med, changing friends every 8 days. At 50, he resigns from the vacation spot where he was born, determined to track down his great mini-club childhood love, Violette. He shows up in Paris, naïve and lost but glad to be lodged by Louis, a half-brother he never knew he had. In order to be rid of the cumbersome Tridan, Louis passes one of his fling off as Violette, and Tridan, all emotional, thinks he recognizes her at first glance.