Winter is here. To survive, Fuseline, the little ermine, forced by the lack of food, flees her wild environment and settles near an isolated farm and its chickens. However, the arrival of a hungry animal threatens the livelihood of the man who lives here, and a silent struggle for survival thus unfolds between the two worlds. Told without words, this animated film contrasts the fragility of the wild with human loneliness and the need to defend what sustains us. Who is the intruder, and who is simply trying to survive the winter?