2014 | 117 minutes | Directed by Lee Han

"Rarely has the topic of teenage bullying been examined in such detail as in this superbly constructed drama." - Variety

"My sister died. But no one knows the reason why." Because of Cheon-ji’s unexpected suicide, Hyun-suk and Man-ji are driven out of their home and move to another apartment. By chance, Man-ji heard a story that might relate to the death of her sister after meeting her dead sister's friends. Tracking down clues, Man-ji discovers that Cheon-ji's best friend, Hwa-yeon is behind all the events that happened. While seeking for the secret behind her sister's death, Man-ji finds out that Cheon-ji left a note in a red knitting ball.

Free | Open to the public | In Korean with English subtitles