Sébastien is a former rugby player and a true colossus. Between the ages of 12 to 16, he was a victim of rape by a beloved relative. Thirty years later, he has failed to speak out. After he meets a little colossus like him, he is compelled to make the right choice.

Louison, 14 years old, observes the adult world with skepticism but envy. During a family weekend at the seaside, she begins to suspect Pierrick, her sister Emma's boyfriend, of Misaffection. Spying on the young couple, she gradually discovers the physical and psychological violence Emma is subjected to. She then tries to free her from Pierrick's grip, the seemingly perfect lover...​