Wow just wow...I just saw this film and felt compelled to write a review. The other review on here already gives you a detailed synopsis of the story etc. so I will not tread over old ground. In a nutshell its a Korean espionage thriller with plenty of action and drama. The action scenes are some of the best I have seen & I have seen a lot of action films. The acting by the lead guy is understated and very real. Admittedly some of the non-Korean "actors" are not so proficient but I will glance over it on this occasion. The whole film is shot & edited very well, the pacing of the story is excellent. I watched the whole film with baited breath. A real roller-coaster of a ride which will give you adrenalin highs and leave you emotionally drained by the end. It reminded me a lot of The Bourne Identity and if you liked that I am certain you will like this too. My re-watch score is low only because I tend not to re-watch films/dramas as a rule.