Lost and Found 2004

Directed by Kim Dong-ryung

After receiving a call that her mother is ill, Yun-ji keeps getting lost on the subway on her way home. A young girl who lost her mother on the subway goes to the lost and found center and registers herself as a lost item. The following morning, Yun-ji leaves her sick mother behind. She listens to an announcement from a girl looking for her mother on the subway.