Ok first of all how did they even filmed this? it's a masterpiece. I just couldn't feel Lee Byunghun's emotion and anger that much because he didn't showed it like how Choi Minsik did, but they both did great. Lee Byunghun's action of revenge made me feel and it showed me how great this movie is! it's shocking, everything is shocking. But the chitchatting parts with the detectives are quite boring yknow, but the action scenes and the production of this movie carried everything! and though I never expected a film would be this detailed and gory ... I loved everything! and not to mention every scene is fucking cool and iconic I swear, from the green house fight to the clinic scene LMFAO.