Set in Hongseong, South Chungcheong Province, the film tells the story of Jang Soo (Ma Dong-seok), the head of a judo gym who lost his wife in an accident and put all his focus on his daughter. Tae Jin (Kim Young-kwang), a dedicated prosecutor who never tolerates illegal behavior and has no flexibility. The two neighbors have been unhappy with each other since they met and are suspicious of each other. A touching comedy that unfolds with contradictions will be staged in the film.