Kang-Soo (Ko Chang-Seok) is an alcohol and a chronic gambler. He has also never been a proper father to his rebellious teenage son Jong-Chul (Yu Seung-Ho). For 18 years, Kang-Soo has also held a secret from Jong-Chul - that he's not his actual biological father.

Jong-Chul's real father, Tae-Suk (Kim Young-Ho), is a pimp that abandoned love for success. Now, to save his son, Kang-Soo must go to Tae-Suk ...

Gambling street thug Gang-su is always on the run from loan sharks. But when his young son Jong-chul is diagnosed with kidney cancer, he tries to be a real parent for the first time and seeks out Jong-chul's biological father, Tae-suk. Tae-suk, however, refuses to help.