A student becomes a recluse in response to her best friend's suicide and locks herself in her room. She believes that someone is in the room with her. Her alarmed family hires a psychologist to intervene.
Go Eun-ah
Jeong Soo-na
Chae Min-seo
Choi Yoon-mi
Jung You-seok
Jeong Se-jin
Jung Young-sook
Grandmother
Lim Dae-ho
Gwan Ri-in
Lee Da-in-IV
Lee Ha-jeong
Lee Yeon-su
Han Song-i
