Detectives have their informant, a.k.a. ‘straw’, to arrest criminal organizations under investigation practices. Tae Bong is working as a straw in a smuggling office. Incompetent detective Nam Hyuk is using him to replace the sorrow of not having a string to pull. While doing his duty in the smuggling gang, an incident exposed Tae Bong’s identity. Without knowing his situation, Nam Hyuk is trying to steal the smuggled goods to turn his life around. But he is dragged into a mysterious crime as he enters another office by accident. At the brink of death, Tae Bong gets through the crisis by chance but loses all the money he has saved after being involved in the incident with Nam Hyuk… A cooperation begins between a detective and an informant for Nam Hyuk to break the case and for Tae Bong to get his money back! (Source: ktalpha.kr)