Poongsan has the unenviable - and death-defying - job of delivering messages across the North and South Korean border to separated families. When South Korean government agents ask him to smuggle in In-ok, the lover of a high-ranking North Korean defector, into the South, the damsel and rescuer fall in love instead.

Yoon Kye-sang
as Poong-san

Kim Gyu-ri
as In-ok

Kim Jong-soo
as North Korean Defector

Han Gi-joong
as Section Chief

Choi Mu-sung
as Team Leader

Yoo Ha-bok
as North Korean Public Officer

Bae Yong-geun
as Wolf

Kim Jung-pal
as Hit Team 1

Cho Jae-ryong
as Hit Team 2

Lee Nak-jun
as Hit Team 3