So, honestly this one started out great but for some reason got boring mostly because of the leading character Jang Dong-gun as Park Jae-hyuk an agent working for the South Korean National Intelligence Service(NIS) who's hell bent on putting the son of a high-ranking North Korean official, Kwang-il (Lee Jong-suk), who is suspected of committing serial murders around the world. To stop the killer, South Korea, North Korea and Interpol chase after him. First off, they had Lee Jong Suk and I'm not his fan exactly but he's beautiful and his acting is pretty good, so how they managed to ruin the experience is beyond me. Like I said, the first part is impressive for how disturbing it is, truly. I give ten points for that. And please, not for the faint of heart. This one is seriously disturbing. They don't pull any punches and it's all so realistic. And Lee Jong Suk gave such a good performance as a sociopath it will mess you up. But the problem is the actor who plays Park Jae-hyuk was so boring and inconceivably lackluster it ruined the whole effect. Plus, there was barely any story, and it seemed a few scenes strung together. The characters were half cooked completely one dimensional. Overall, I enjoyed some aspects so giving a higher ratin than I normally would.