Bodies were discovered early in the morning in various parts of Toulouse, and the case was handed over to senior captain Simon Keller for investigation. Is C, who just graduated from the police academy, assisting in the case? Cile Gimet, this is her first on-site investigation. They found that the murder case was related to the lyrics of a song by Claude Nougaro. Illness ridden Keller hopes to close the case as soon as possible, C? Cile will find that this case brings back the painful secrets of childhood.
| Actor | Role |
|---|---|
 Lionnel AstierSimon Keller | Simon Keller |
 Camille AguilarCécile Gimet | Cécile Gimet |
 Astrid WhettnallIsabelle Barutel | Isabelle Barutel |
 Yvan Le Bolloc'hFrédéric Gomez | Frédéric Gomez |
 Marc CittiSerge Blondin | Serge Blondin |
 Annelise HesmeNathalie Gimet | Nathalie Gimet |
 Samia SassiSophie Barel | Sophie Barel |
| LLise LaffontStéphanie Cariou | Stéphanie Cariou |
| FFred TournaireFranck Letellier | Franck Letellier |
 Julien LucasJosé Vilanova | José Vilanova |
| DDelphine AlvadoForensic doctor | Forensic doctor |
| EElodie BuissonProfessor Claire Bariety | Professor Claire Bariety |
| ÉÉmilie PerrinFiona Furhman | Fiona Furhman |
| FFranck PechDenis Lacoste | Denis Lacoste |
| JJulien Sabatié AncoraDoctor | Doctor |
 Nicolas LainéArchives employee | Archives employee |
| AAdrien GuittonBrigadier Aupetit | Brigadier Aupetit |
| EErwann ValetteRefit worker | Refit worker |
 Thierry CalasRefit worker | Refit worker |
| JJulie KpéréPolicewoman | Policewoman |
 Samuel MathieuMathieu | Mathieu |
| BBoris PetitouPoliceman | Policeman |
| VVinayaIntern | Intern |
| CChristophe GuemyJérôme Dottin | Jérôme Dottin |