The disappearance of a student from the Ballet Academy causes great concern. Laurent confides to Dominic that for several months, Jeanne seemed to be hiding things from him. Feverish, Lily-Rose takes a pregnancy test.

The discovery of a secret meeting place brings new elements to the investigation. Similarities appear between Jeanne and a former student of the Academy. High tensions in the group of friends push Léonie to confide in the investigators.