Great balance between action and comedy! When I decided to watch it, i thought it will be mainly action-all serious stuff- but i was quiet surprised when they started dropping different jokes around. At first I didn't know what to think about it but I quickly realised it was a comedy... haha silly me! All the actors were great, especially Shin Ha Kyun. I wouldn't have picked a better crazy psycho than him for this plot! If you are a fan of Shin Ha Kyun, you know that he has this little facial expression or gestures that really are his, and through this character it was even more visible which just added to the character. I was surprised by BoA's acting, she did a good job with the though character. I would recommend this movie if you are interested in martial arts or like action movies packed with fighting scene. All the fighting was really well done and I mean you can see that the main guy really worked out to have similar body muscles as a pro fighter! It has comedy so the movie doesn't get boring from all that fighting!!