A young man develops schizophrenia after his mother's suicide. After he meets a kindred spirit at the psychiatric hospital, he forges a plan with the man to escape.

Lee Min-ki
as Seung-min

Yeo Jin-goo
as Soo-myung

Yu Oh-seong
as Choi Ki-hoon

Kim Jung-tae
as Kim Yong

Shin Gu
as Mountain Teacher

Han Hye-rin
as Yoon Bo-ra

Kim Bo-ra
as Eun-yi

Yun Yeong-keol
as NIS Agent

Kim Jae-hwa
as Princess Buckingham

Jeong Gyu-su
as Chairman of Human Rights