It is an important day for Hanane: the results of her exams. Her best friends Ambre and Maïssa are by her side, but she misses her brother. She has had no news from him for six months. Hanane is willing to tell a big lie to make him come back.

Determined to find out who had it in for her brother, Hanane persuades her friends to help her. The girls turn into razor-sharp investigators.

Hanane charges headfirst into the drug dealers' universe. Julien, Djamel's childhood friend, tries to warn her of the dangers. Maïssa battles to save her brothers while Ambre takes a big decision.