Wow! I caught wind of this through a magazine review and checked it out and was very glad I did. Some of the great stuff coming out of South Korea will blow your mind and this is no exception. The references people made to this movie being in the caliber of Oldboy and Memories of Murder are well substantiated but I would liken it more to Memories of Murder and not quite in the same league as Oldboy. The only movie in league with Oldboy is Seven. While the plot kind of reminded me of some of the classic 80s and 90s psycho-killer thrillers we have had come out of the US, it does hold up well on its own for being a foreign film. Not the most original plot but a decent twist on it nonetheless. Nothing in the plot or sequence of events stood out as unbelievable and there are some real gripping scenes that'll make you white-knuckle. There are some good character developments and reversals that I enjoyed as we see our main character, a former cop turned pimp, trying to find the guy who's been killing his girls and coming to grips with his personal responsibilities and justice. I don't want to give away the plot other than that as it would detract from your enjoyment. It does burn a little slow after the first 20 minutes of the movie as we see events unfold so be prepared for the reward in the last 30 minutes of the movie as the sequence of events crescendo. I'll be keeping an eye on this great director.