Antoine is the Head of HR of a big company. When his wife decides to go on holiday and leave him with the responsibility of their four kids, he knows it will be easy. But Antoine has underestimated the mess that it can be.
In her new school, 15-year-old Chloé soon becomes a close friend of charismatic free spirit Luna. She also falls in love with Luna's ex-boyfriend Félix, a bad boy with a poisonous charm who's also a porn addict.