Stéphane decides to move to the beautiful mountains of Cantal in order to reconnect with his 8-year-old daughter, Victoria, who has been silent since her mother's disappearance. During a walk in the forest, a shepherd gives Victoria a puppy named "Mystery" who will gradually give her a taste for life. But very quickly, Stéphane discovers that the animal is in reality a wolf… Despite the warnings and the danger of this situation, he cannot bring himself to separate his daughter from this seemingly harmless ball of hair.

Winter 1943, France. A Wechmacht officer is in pursuit of local members of the Resistance. As night falls, he loses his way and wanders into the Auvergne mountains. The soldier finds refuge in a mysterious buron.