In the town of Saima, when summer is about to begin, a group of six high school students intend to live a secret adventure by spending seven carefree days in a ruined mining facility.

Louise, ballerina at the Garnier Opera in 1895, rushes home after a show but is stopped by a friend asking for money. Louise knows what to do in order to repay her.

Alex, an art student, dreams of joining Eve, the "Elite’s Visual School". Together with her best friend Kimmy, they train hard to pass the notoriously impossible entrance exam. Alex's training turns into an obsession, compromising her friendship with Kimmy.

It's Christmas Eve and a coup attempt happens at the Parliament. In a deserted newspaper's office, the boss tries desperately to rally the troops for this unique event. But on a night like that, it's very hard to catch the public's interest… and little by little, a strange melancholy enters the hearts of the journalists who resign themselves.

Jean’s father is always busy at work, so he spends most of his time with his nanny Yvette and neighbour Michelle. His mother is away but nobody talks about her. Luckily Michelle is on hand to read postcards about Mum’s Wild West escapades and, even though they seem far fetched at times, they keep Jean happy. At school, the steel marbles Jean takes from his father’s factory are valuable playground currency but their removal has unexpected consequences.