On a country road, Irina hits a dog and brings it to its owner Mikhail. His eight-year-old son Dima, who has been silent for a year due to psychological trauma, mistakes Irina for his dead mother. It’s time for Irina to leave, but Dima begins to become hysterical, and Mikhail, fearing that he will shut up again, forcibly holds Irina back. She becomes a prisoner in their house.