Raised in Ireland by an adopted family, Lee Jung Ah (Lee Na Young) returns to her native South Korea after the death of her family members. The emotionally unstable Jung Ah blames herself for her family's deaths, and has been thinking about suicide. Is she going to Korea to find her real family, or to drown herself in the Han River? She's not quite sure herself. In Korea, she meets Kang Guk (Hyun Bin), a lonely, kind-hearted bodyguard whose strong sense of righteousness only brings him trouble; Jae Bok (Kim Min Joon), an apathetic, unemployed drifter with an unusually clear mind; and Han Shi Yeon (Kim Min Jung), a tough-talking actress who does soft porn to support her family. When these four people cross paths, what results is tears, laughter, romance, and a little something called life.