Yuliya's son dies while hiking in the mountains. However, after the funeral, she receives a mysterious video in the mail in which she sees her son alive. Everything indicates that he is being held somewhere on Sakhalin, in the area of the Severnaya-2 drilling station. Yuliya goes to Sakhalin in search of her son. Her ex-husband Andrey flies there after her. Parents face a long search for their son in a dying snow-covered village, in a harsh region where strangers are not welcome.