Victoire and her husband Samuel have recently moved to a small town to start a new chapter. However, on the first day of school, Victoire bumps into Florent, her first love.
Victoire and Florent are so worried that they decide to remain silent about their relationship. A hunt is organized to try to find Marion. Is she still alive? Florent also has to come to terms with the guilt of Marion's parents, Anne and Pierre, local worthies.
Victoire and Florent have to keep their relationship secret, but a mysterious blackmailer threatens them. Éric Merlin, one of Marion's former patients, declares having had an affair with her. Anne and Pierre decide to close the restaurant, against Florent's wishes. Victoire collapses and ends up in hospital.
Alexandra and Samuel hunt for Florent and try to find out the name of his mistress. Perhaps the bank's CCTV camera holds the key to the mystery? Victoire attempts to discover more about the identity of the blackmailer and suspects Ms Carlier. Pierre is frustrated by the investigation's slow progress.
Alexandra learns the truth and decides to set a trap for Florent, knowing he is seriously wounded. Cornered, Émilie confesses to the role she played in her ex-husband's flight. Having decided to help the police as much as she can, Victoire discovers new photographs and confides in Alexandra.
Nine months have passed. Victoire gives birth to an adorable baby. But nothing's going right: Mathieu refuses to see her and she's fighting what seems very much like depression. When out for a walk in the fresh air with Nathan, the baby is kidnapped. She calls on Samuel for help.
