In a world ravaged by a zombie apocalypse, Anton, a 22-year-old raised since childhood in an isolated bunker, lives a solitary and meticulous routine, marked by his innocence and childlike curiosity. He has never met another human being besides his parents, who disappeared years ago. Everything changes when he finds an injured boy in the snow and, against everything he has learned, decides to take him inside. While caring for the unconscious stranger, Anton discovers feelings and desires that he never knew how to name — and begins to realize that his loneliness may not have to last forever.