Let me say one thing. I give it 10 just for the apt realistic ending it is. It is not what I liked one little bit but then I give it to the director for catching us off-guard but this is a South Korean movie and this is EXACTLY what I expect from them - a twist that knocks everyone out. This is good. This is what I look for in a South Korean movie - something different from the usual "Hollywood Crafted Endings" - which I feel most of the time implanted into the movie. I saw the film yesterday night and it was running in my mind every time I woke up in sleep. I never thought that this would have such an impact on me.
About the story - this is a gangster film with lots of great violent fights - I thought initially that those fights reflected the title ...until the ending and then I felt the whole movie was like a gangster carnival.
See the movie - this will hit you...