From the first glance exchanged in a cybercafé, Vincent and Rebecca loved each other. They are young, barely 18 years old, and look carelessly at life. However, two months later Vincent’s badly injured body is found in the Rhône and Rebecca disappears after this brutal death. Hervé Cagan, 48 years old, from the judicial police of Villeurbanne, is in charge of the case. He and his partner Karine Mangin will have to quickly retrace the teenagers’ chaotic journey. Carefully unfolding the last hours of the young man’s life, Cagan manages to solve the case. However, destabilised by what he discovered and shaken in his certitudes, Cagan is confronted by a crucial choice, one that could overturn the way he leads his life.