I don't understand why a lot of people who have watched this film don't understand the plot. The storyline is great. Though I do agree that it needs some editing. It's very interesting cause it shows us the side effects of using drugs, worst overdosing it, and some underground dealings and etc. I was shocked by the s*x scene, but just bcoz it is KSH, and it was executed wonderfully.. I like SooHyun and my respect for him just skyrocketed because he had done this movie with this kind of genre. It shows their professionalism. Overall, It's a great film.