Marc Lamigeon

Stéphanie, a police officer working for Internal Affairs, is assigned to a case involving a young man severely wounded during a tense and chaotic demonstration in Paris. While she finds no evidence of illegitimate police violence, the case takes a personal turn when she discovers the victim is from her hometown.

Astrid Nielsen works in the library of the judicial police. She has Asperger's syndrome. With an incredible memory, she excels at analyzing files of ongoing investigations. The district commander decides to use it to the fullest, entrusting her with very complex investigations which have remained unsolved to date.