A mysterious man nicknamed "Poongsan" (Yoon Kye-Sang) crosses between the South and North Korean border as a courier for hire. There's no way for people to contact him, but instead, Poongsan picks out potential clients from banners at a make shift memorial along the DMZ. Poongsan's next target is a man who wishes to bring a North Korean woman into South Korea. Meanwhile, a man (Kim Jong-Soo) is pushed by the section chief (Han Ki-Joong) at the NIS to write a report on North Korea. That man was a high ranking official in North Korea prior to defecting to South Korea. He's protected by NIS agents, but still paranoid that North Korean assassins will kill him. He asks the section chief at the NIS to bring his lover In-Ok (Kim Gyu-Ri) to him from North Korea. Agents from the NIS learn of a man able to smuggle people across the border. They place a banner along a makeshift memorial at the DMZ border. During the middle of the night, two NIS agents meet Poongsan who arrives on a motorcycle. When an NIS agent asks how long it will take to bring In-Ok into South Korea, Poongsan points to his watch to show 3 hours. The agent gives an incredulous laugh, but gets back into his car and waits for Poongsan. Poongsan runs off into the night towards the DMZ border. Poongsan heads out to Pyeongyang to retrieve In-Ok. While they are crossing the border back into South Korea, In-Ok feels an attachment to this mysterious man who doesn't speak ...