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?

The game contestants are cut off from the rest of the world during ten to fifteen weeks in a house called “house of secrets”, where every room is fitted with video cameras, except the restroom. The goal is to keep a secret while trying to discover the other contestants' secret.