Loner
"Family Secrets Are Revealed"
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.
Directors: Jae-shik Park
Writers: Jae-shik Park, Jun Im, Jung Bum-shik, Min-jun Kim
IMDB: tt1337034