*****************ENDING-----SPOILER*****************

Rating: 10/10 (20 November 2004)

I thought this movie was brilliant. A cool action, thriller, and mystery movie at that. Although the mystery genre is debatable, as the end of the movie explains facts rather than letting the viewer have the excitement of stitching the plot together to come to their own conclusion.
As for the Ending, I just spent the last 1/2 hour perusing the comments and message forums to check if anyone else hit on this fact. It looks like no one else has yet. Upon my first watching of the movie I thought, "Cool...but, what a lack-luster and strange ending." Albeit the ending does wane a little, bit there's a hidden gem if you look carefully (helps if you have the movie on DVD so you can hit the pause button).
***********HERES THE SPOILER***********
A friend of mine in Korea pointed this hidden gem out to me while I watched the movie for the 2nd time, this time on DVD.
Remember this quote, "Even though I'm no more than a monster - don't I, too, have the right to live?"
And this one..."Laugh and the world laughs with you. Weep and you weep alone."
The spoiler is about the last scene...When Oh Daesu is sitting in a chair about to go through hypnosis by the very woman that hypnotized him and his daughter in the first place. He wants to go through hypnosis to forget the fact that his lover is actually his daughter. The lady tells him that sometimes the hypnosis doesn't work...Tells him to stare at a tree, then tells him to imagine walking 70 paces. Each pace that he walks the monster ages at a super-rate and eventually will die...leaving Oh Daesu behind.
The scene then changes...panning over a set of footprints...walking away...***did you see it***...finally showing Oh Daesu and his daughter embracing. The daughter asks Oh Daesu all these questions, what's going on, what are you doing here?, you'll catch a cold, etc...He embraces her. In the end you see the daughter with a very genuine smile, showing love in her eyes...On-the-other hand, you see Oh Daesu with a crazy-like-grin...leaving the viewer not-to-sure if the hypnosis actually worked or not.
Are we left with "Oh Daesu  the real Daesu" or "Oh Daesu  the Monster"
If you have the movie on DVD hit the pause button near the end of the scene where the camera pans over the footsteps. (At the wide lens shot of the two lovers - daughter and father.) In the middle-foreground you will see hung to a tree the woman-hypnotist (she is camouflaged because of the coat she is wearing).
Recall the two quotes..."Even though I'm no more than a monster - don't I, too, have the right to live?" "Laugh and the world laughs with you. Weep and you weep alone."
The movie has its faults, but I thought this hidden gem was pretty cool and made the ending more satisfying.