Aurore Garnier, a police officer on the Cote d'Azur, finds photos of a woman she believes to be her sister who was abducted decades ago.

Clara shows up at the estate. Paul and Aurore believe in her, while Fred and Gabriel are sceptical. When Gabriel's nightclub is burned down, he is convinced he knows who did it.

Clara is officially recognised by the law as a Garnier. Aurore continues to investigate Ivaldi, who raised Clara in Italy. Thelma gets into difficulties with the drug-dealer.

Clara must defend herself when conflict arises with her lover. Thelma panics when the police investigate her contact with the drug-dealer, while Gabriel tries to persuade Clara into the sale.

Clara learns the secrets of her abduction, including the name of one of her captors. Aurore learns that there may be a mole among the police. Aurore tries to work out how to involve Baptisti without Ivaldi's testimony.

Clara goes to Baptisti's place to get evidence, but Vasquez's killer is one step ahead of her. Meanwhile, Aurore's husband discovers a shocking truth.