Hong Gil-dong is an infallible private detective with an exceptional memory and quirky personality. While chasing the only target he failed to find, he gets entangled in a much bigger conspiracy than he bargained for.
이제훈
as Hong Gil-dong
김성균
as Gang Seong-il
박근형
as Kim Byeong-deok
노정의
as Dong-yi
고아라
as President Hwang
Kim Ha-na
as Mal-soon
정성화
as Innkeeper
김동휘
as Student
Jang Se-won
as Policeman
이준혁
as Real Estate Agency Owner
Yoon Yeong-gyun
as Tae-jung
황보라
as Used Book Store Woman
