The script centres on Mathilda and Thomas, married for over 15 years. They’ve always dreamed of having children, but their efforts were only met with failures. After having adopted Mapring, a 4-year-old boy from Thailand, their life takes a tragic turn when Mathilda dies in an accident. Thomas then finds himself alone with a child he hadn’t really wanted. Devastated by this loss and incapable of forming a bond with Mapring, he decides to go look for the child’s biological family. Accompanied by Chaan, a local guide, Thomas starts on a trying journey through Thailand. Over time, father and son start to tame each other and create bonds… However, a crucial question remains: what will Thomas do when he finds Mapring’s biological family?

Elsa Valentin is in the middle of a brutal divorce and custody battle when she is struck by the appearance of a pretty young girl named Lola (Héloïse Cunin). Her interest in the child grows to an obsession, and she finds any possible excuse to be near her. When Lola's mother, Claire, grows unnerved by all this, Elsa admits she believes Lola is her daughter.