Lucie, about to graduate university, has to stay in Paris for the summer to finish her master thesis. While she hopes to combine work and rest, she’s constantly distracted by the outside world, people in vacation, but also her own despise for routine…

Bianca doesn't know how to live anymore. She asks her friends about their daily life, but that doesn't help. So, she goes further and starts spying on them thanks to small cameras that she hides at home. By observing them, she hopes to forget her own pain and discover a little of theirs.

Luc travels to Paris for the first time to sit the entrance exam for a carpentry school. There he meets Djemila, a young worker with whom he enjoys a short romance, before returning to his home town and beginning a relationship with Geneviève, whom he has known since childhood. Caught between two passions, Luc runs, resolving to fulfil his father's dreams by devoting himself to his future... until finally, he experiences true love.

Despite Lise's advice, Claire decides to celebrate Christmas with Leon, a young outcast who claims to live outside the system. They agree to organize an anticapitalist Christmas Eve, prohibiting all expenses. Meanwhile, Mathias delivers presents as Santa for a well-paid temporary assignment.

Farah lets a newfound thirst for justice guide her life after the case involving her best friend’s rape is dismissed.