While she was jogging Lisa Campion , the daughter of the retired police officer Fabio Campion , discovered the frozen corpse of Julien , a child who disappeared 20 years ago.The police officer Simon Beauregard is then sent to Roches Noires , a village of the Tarentaise Valley, for the criminal investigation.
| Actor | Role |
|---|---|
 Grégori DerangèreSimon Beauregeard | Simon Beauregeard |
 Flore BonaventuraLisa Campion | Lisa Campion |
 Jérôme AngerFabio Campion | Fabio Campion |
 Charlie DupontAntoine Gaube | Antoine Gaube |
 Carole RichertCapucine Darcourt | Capucine Darcourt |
 Guillaume ArnaultRémy Campion | Rémy Campion |
 Jonathan GenetMartin | Martin |
 Nicolas GrandhommeEtienne Delaroche | Etienne Delaroche |
 Pascal VannsonMarco | Marco |
 Maxime JulliaL'ouvrier | L'ouvrier |
 Oscar PauleauJulien | Julien |
 Pierre GomméMartin (8 ans) | Martin (8 ans) |
| MMargaux BrunelleLisa Campion jeune | Lisa Campion jeune |