In Tokyo, Osamu Shibata is married to Nobuyo, who live in poverty. Osamu receives occasional employment and Nobuyo has a low-paying job, but the family relies in large part on the grandmother's pension. Osamu takes his son Shota shoplifting for groceries, and discover a girl, Yuri, homeless. Osamu takes Yuri to their home, where the family observes evidence she has been abused. Despite their strained finances, they informally adopt her. However, the Tokyo police, aware Yuri is missing, begin to search for her.