This shit's pretty fucked up right here.
This definitely raises the bar and adds some originality to your average revenge flick. It starts off standard enough, following a very depraved psychopathic serial killer as he stalks, rapes & murders various young women. A widower of one of the women, who also happens to be a secret agent of the Korean government, takes it upon himself to find the killer vigilante-style and execute his revenge.....but then it veers off into new territory with the agent playing his own twisted game of catch and release. It's not scary, but it does have ample sadistic violence - though I wouldn't go so far as to loop it into the torture-porn genre, it kinda transcends that and makes it work for the story. I won't give away any of the twists and turns. The downside is that once you see how it's playing out, it gets a little long in the tooth and repetetive (I'm reminded of the pacing of the original Girl With The Dragon Tattoo), and I just wanted it to get to the inevitable final scenes. Choi Min-sik, who starred in Oldboy, has another great performance here as the killer, and projects tension and lunacy very well. Because of some of the all-too-real violence/rape, I wouldn't exactly call this an 'enjoyable' film (in fact, I think Clippers may hate it), but it's an above-par serviceable entry for this kind of thing, and along with Oldboy and The Host, another recent fascinating export of Korean cinema.

Watching this tonight.
Review pending.

Please God, don't let this be a waste of my time

I enjoyed...very much so. It was very hard to watch at certain points. Very graphic and tense.

enjoyed it more than I thought I would.