After the death of her father, the model Alix Castelac discovers that she must share the will, and the family property, with a half-sister hidden by the name of Noémie Boileau, a truck driver.
Caroline, a professional horse driver, learns she has breast cancer. Avoiding dealing with it, she runs off to Switserland for a championship. Her husband, Julien, is a judge who has just given a young criminal, Pierre, leave for the day. On her way to Switserland, Caroline meets Pierre and brings him along as her horse groom. When Julien finds out about the cancer, he follows his wife to Switserland
