A family, who celebrates the mother's birthday, tries to pick up the pieces.

Mona, a prisoner on work release, meets Clément, a shy actor. Desperate to impress Mona, Clément recruits his extroverted friend, Abel, to help. When Mona becomes more interested in Abel, it sets off a conflict between the two friends. Meanwhile, Mona attempts to keep her past hidden.

At 18, Claire is torn between swim practice and the pangs of first love. The elderly and eccentric Maurice Reverdy takes her in in his big house, but the girl carefully avoids this faraway figure, who is none other than her grandfather. Proud, rebellious, solitary, they represent two generations that are simultaneously attracted to and repelled by one another. Their lives will intertwine, as one seeks out her future and the other is tormented by his past.

In Paris, a university student attempts to lead a double life - in love with her French boyfriend Pascal, and staying true to her Algerian family, particular her strict, traditional father. In Algiers, her cousin Yacine leads a parallel life, preparing to leave his girlfriend to move to Paris.

Kévin-Mohamed is a young high school student from an integrated and secular family. He befriends a girl from a strict religious family and falls in love with her

A group of teenagers living in a housing project in the outskirts of Paris rehearse a scene from Marivaux's play of the same name. Krimo is determined not to take part, but after developing feelings for Lydia, he quickly assumes the main role and love interest in the play.