After barely surviving a violent attack by an elusive serial killer, crime boss Jang Dong-su (Don Lee) finds himself forming an unlikely partnership with local detective Jung Tae-seok (Kim Moo Yul) to catch the sadistic killer simply known as “K”.A serial killer with a heartless soul roaming around towns. A cop that is dedicated to catching him at all costs. And a gangster leader with a special mission to annihilate this serial killer. This piece of work has more goods than bads. I would start off by stating the fact that the idea of the movie is fairly original or at least, well-executed. There was a mutual relationship that gives viewers comedic relieves every now and then. This light up the mood of the movie in lots of times.