The one time she accompanies him to school, it would have to turn out to be a vacation. Here they are forced to spend the day together. But, by the way, whose death is being commemorated today ?

In the winter on the French Riviera, a teenage girl goes missing on her birthday. Géraldine, an employee in the mayor's office, takes on the role of detective. Versions of the truth rapidly multiply as she struggles not to be overwhelmed by all the gossip and theories.