Dont really understand the need to get ji sung's character hooked on drugs. Imo it didnt really add much to the plot. Otherwise everything was top notch especially the nostalgia created at times particularly at the end. A lot of good friendship days missed because of one bad decision 20 years ago. Its a great one time watch, never becomes dull and boring, all the actors fit perfectly into their respective roles. I will be looking forward to more from this director and writer. And ji sung is the best actor in South Korea.