A crime thriller that is superior on all points except for the action scenes that lack cinematic vision. It's one of those rare examples where the villains are actually understandable with their contempt on social hypocrisy, although their means are beyond unacceptable. Even though it's calculated for the most of the time, it powerfully presents what comes of the collision between true love and fanaticism.
This shocking beauty started the whole Korean blockbuster wave with a brutal intro, unbearable tension, intricate plotting, spectacular action and resonating pathos. Their super-industry went places afterwards. Yet this is still one of the most gripping action-thrillers out there. Later remade as "Iris" on TV.