France, early 70s. Lucie, a 10-year-old girl missing several months ago, is found wandering the streets. His body mistreated indicates that it was sexual abuse. The reasons for his abduction are shrouded in mystery. Traumatized, refusing to talk, Lucie is admitted to a hospital. Here befriends Anna, a girl of her age. 15 years later, Lucie has not forgotten the trauma she went through. Lucie rang the doorbell of a family apparently accustomed. Father opens the door and finds himself face to face with Lucie, armed with a shotgun, convinced that he has finally found the executioner.