An emergency nurse, residing in a Savoyard winter sports resort, returns home after her night shift at a local hospital. The access road to the resort is snowy and driving conditions are particularly difficult, especially in the middle of the night. Her vehicle is equipped with practically new snow tires. But she remains stuck on this mountain road. Victim of the cold and appalling weather conditions, she dies without having been able to call for help. A tragic traffic problem on a snowy road? Upon arriving at the scene, rescuers discover that her vehicle has been sabotaged; the snow tires have been reversed on the vehicle's drive wheels, rendering them completely ineffective on snow. The victim was in the process of getting a divorce. Her husband, an irascible and violent man, had threatened her several times because he knew she was having an extramarital affair. She had just broken up with her lover. He is also suspected of seeking revenge. Is one of the two men the murderer? Illusions, lies, jealousy, and false pretenses... A novel full of twists and turns.