Sympathy for Mr. Vengeance is part of the loosely linked together Korean 'trilogy' by Park Chan-Wook which all revolve around the theme of vengeance.  I adored OldBoy, I enjoyed Lady Vengeance more than I thought I would, but this one I found to be a terrible mishmash and unpleasant to watch.  

This movie perfectly typifies why I am never going to be a traditional movie-reviewer.  For example, this comes from a review of this movie by a viewer named ichithekidda:

Chan-Wook Park, however has created a blisteringly vivid cinematic ballet of human misery with breathtaking cinematography and a vibrantly colourful art direction which makes this film deceptively easy on the eye.
 

It’s an uber-noir exegesis of futility that inevitably sees all the characters overwhelmed by the consequences of their actions. Mr Park builds up such a gut– wrenching level of tension through smoulderingly paced scenes, long edits and static shots that when violence sporadically erupts it seems to heighten the sense of brutality and reawakens a sense of shock (pun) the lingering effect of which is unsettling rather than cathartic. 

Isn't that a gorgeous bit of nothing?  I read that and feel like a foreigner trying to parse my first Advanced English sentence.  I know what the words mean, but I swear, that doesn't parse for me.  Or maybe my mind just shuts down as soon as it encounters 'uber-noir exegesis of futility'.  I mean, really.

What I say instead is that this film is chaotic, grim, and relentelessly violent once it gets going.  I spent the first half of the film trying to figure out who was doing what to who and the second half of the film flinching back at what they were doing to the various who-s.  I had no sympathy for Mr. Vengeance.  I am honestly not even sure which character is supposed to be Mr. Vengeance.  But unless it was a gender-confusing title for the little girl who died, I can tell you that I didn't cry for him later.

If you like the ultra-violence with the broad strokes of sexy film-work, you may well find something here that you like.  But if you're looking for characters that you'll care about, a story line that will engage you...well.  This is unlikely to be it.  Exegesis indeed.