Matthieu is a young and talented black box analyst on a mission to solve the reason behind the deadly crash of a brand new aircraft. Yet, when the case is closed by authorities, Matthieu cannot help but sense there is something wrong with the evidence. As he listens to the tracks again, he starts detecting some seriously disturbing details. Could the tape have been modified? Going against his boss' orders, Matthieu begins his own rogue investigation - an obsessional and dangerous quest for truth that will quickly threaten far more than his career...

Mélanie, 16 years old, lives with her mother. She likes going to school, her friends, playing the cello, and she wants to change the world. But when she meets a boy on the Internet and falls in love with him, her world changes as she is gradually recruited by Daesh. Sonia is 17 years old, and she almost did something irrevocable to “guarantee” her family a place in paradise. These teenage girls might be called Anaïs, Manon or Leila, and one day they all might go some way down the recruitment process. But can they ever come back from it?