Tae Gun-Ho (Jung Jae-Young) is a cold-blooded debt collector, but he is also in debt himself. He goes back to his old apartment that is being demolished and discovers a cassette recorder that his deceased son played with. Gun-Ho doesn't remember how his son died due to his memory suppressing a traumatic event. On the day that Gun-Ho pays off his debts, he passes out in his car at a stop light. At the hospital he is diagnosed with liver cancer. Gun-Ho learns that he doesn't have much time left to live. He needs to find a liver donor within the next 10 days. His son died five years ago and donated his organs to five other people. Gun-Ho contacts these five people to ask if they can donate a liver to him. Four of those persons refuse. There is one person left.