Fahim Mohammad, a Bangladeshi immigrant, becomes a world junior chess champion in France.

Angélique, 13, the eldest of her many brothers and sisters, lives in the suburb of Valenciennes. This day, at school, she is offered to pass an audition for a film.

Abominable plumbing and violent deaths: Marianne, pregnant to the eyeballs, and Ben, plumber and one-night stand, team up to survive an epic night and face the monsters of a building plagued by an unknown evil.

Five young inhabitants from Paris are staying in the country for the weekend. They do not know yet that their evening is going to turn into a nightmare.