This drama really redefines the suspense genre of KDramas. This is how revenge in drams should be: situations that would boggle one's mind and wondering who's on who's side. It helps that the actors in the drama have been a villain somehow in other KDramas. Nam Gong Min did a great job and his chemistry with Kim Byung Chul's character are one of the reasons why I enjoyed this drama.

That beep beep part when it scenes are getting intense will forever be engraved in my mind. This drama is highly recommended.