I don't even know where to begin to describe how awesome this movie is! Korean cinema IMO is the best out there when it comes to making movies these days, there's a reason Hollywood buys up all the rights to a number of Korean films, but unfortunately they are just wasting their time remaking these films! The originals are AMAZING, no need to remake them! Same goes for the films coming out of the Scandinavian region, amazing films no need for remakes! The action in this film is some of the best I've seen, as is the storyline, it keeps you on the edge of your seat, and keeps you guessing as to what is really going on. A masterpiece!!!!!!