I love a good revenge story and this was definitely a brilliant one!
But it's definitely not a movie for the weak hearted cause it has too much of sexual violence and gore. I had to skip a few mature scenes myself..it was too disgusting to watch. *pukes* Those scenes very graphic and gruesome but necessary for the story, that's why I think the story deserves a 10/10.

Acting - 10/10. I think it takes a lot of skill to play the roles of the main characters. Choi Min Shik and Lee Byung Hun played their roles perfectly!

Music - I just gave it an 8/10 but actually I didn't really pay attention to the music lol. But so assume it's good cause if it was terrible it would have distracted me.

I like this movie much more than Old Boy.. but like Old Boy, I don't think I can re-watch this again. It's just too disturbing..