Peppino, a retired hitman for the Camorra, has now fully passed on his job and know-how to his single son, Nino. But when Nino is brutally assassinated, the old man is back in business to take revenge. Aside his everlasting love Rita and his longtime henchman Totò, Peppino will go to any lengths, even if it means bringing the Camorra down.

Jeong-goo is in a relationship with his son's girlfriend, Mi-hee. Mi-hee feels guilty and breaks up with Yeong-jin, and Yeong-jin who is struggling because of it, got in a relationship with Joo-eun. Yeong-jin's ex-wife, Yeon-ri meets Jeong-goo by chance and finds out about the whole thing, and Yeon-ri who was curious about Jeong-goo, sleeps with him...