In beautiful mountain chalet in France live two couples: Luc and Clémence, and Virgil and Philippine. Luc owns a car dealership and a workshop; Clémence has her own hair salon; Virgil is an orthopedist at a clinic; and Philippine is passionate about science. Luc and Virgil have been friends since childhood. The couples keep friendly relations and share the house comfortably. But one day, at the threshold, appears Clémence’s ex-husband, who even after several years cannot come to terms with the divorce. His arrival destroys the idyll of the chalet’s residents. With every day, the past destroys the present more and more. It turned out that happiness is ephemeral. But for it, it’s worth fighting.