During preparations for a school play, the smitten Krimo accepts a role for the sole purpose of romancing Lydia, the lead actress whose overt investment in the play stirs up a lot of problems with her classmates.
A group of teenagers from the housing project of the Paris suburbs are rehearsing a part from the play Games of love and Chance by Marivaux for their French class. Krimo, who is trying to seduce Lydia, accepts the role of Arlequin and joins the rehearsal to get closer to her. But his timidness and awkwardness get in the way.