Four friends pledge to commit suicide together but while standing on the ledge, only one of them actually jumps. Her ghost begins to haunt the remaining friends until the pledge is fulfilled.
Oh Yeon-seo
Eugene
Jang Kyoung-ah
Unjoo
Son Eun-seo
Soy
Song Chae-yun
Eun-young
Yoo Dam-hee
Jung-un
Park Ga-hee
Ju-yeon
Park Jung-yoon
Jung-yoon
Kang Byul
Bo-yoon
