In France, two married couples live in a beautiful mountain chalet, Luc and Clémence and Virgil and Philippine. Luke owns a car showroom and workshop, Clémence has her own hairdresser, Virgil is an orthopedic doctor in a clinic, and Philippine is passionate about science. Luke and Virgil have been friends since childhood. The couples have a friendly relationship, they comfortably share a home. But one day Clémence’s ex-husband appears on the doorstep, and even after several years he cannot come to terms with the divorce. His appearance destroys the idyll of the chalet's inhabitants. Every day the past destroys the present more and more. It turned out that happiness is ephemeral. But it's worth fighting for.