Théo is given up for adoption by his biological mother on the very day he is born. After this anonymous birth, the mother has two months to change her mind… Or not. The child welfare services and adoption service spring into action… The former have to take care of the baby and support it during this limbo-like time, this period of uncertainty, while the latter must find a woman to become his adoptive mother. She is called Alice, and she has spent the last ten years fighting to have a child.

Commander Léa Soler and Captain Paul Marchal are divorced, but they'll have to team up. Not to mention their teenage children, Alice and Thomas, who are also forced to see each other outside of work.

François attends a casting. After a very strange interview, he finds out he is actually at the heart of the mysterious set up in which he is forced to take part...