A Corner (2012)

Elderly Lee Young-Ae (Kim Yong-Rim) lives by herself. She appears to have early symptoms of Alzheimer's. Lee Young-Ae is is lonely and carries regret over her past. 17-year-old Choi Dong-Ha (Yeon Jun-Suk) lives with his successful mother, but he feels unloved by her. He is bullied at school. After getting into trouble at school, Choi Dong-Ha is ordered to perform volunteer work at a local community center. There, he meets Lee Young-Ae.