A young, abandoned child who lost his memories is brought up by a killer, and as a result, the child grew up as a killer. Kim Su Hyeon is living with Pavel who raised him. Su Hyeon plans to make Pavel, who suffers from Alzheimer’s retire and take care of him. When he asks his broker, Phillip, to take care of his guns at his other hideouts, he gets a job offer from a mysterious woman. Meanwhile, Do Hyeon Jin comes across with a case that Su Hyeon is involved in. (thetvdb.com)