It was interesting, but I found the ending anticlimactic because the reason for the whole premise that the show was built on, which kept us curious was so stupid.
I couldn’t muster up any pity for the Jun Seo guy. He chose to be friends with the guys for 20 years! And in doing so, put himself in a situation where he was used by them just like their psychopathic serial killer friend was. He betrayed his friend, stayed friends with these guys for personal gain, and conveniently got his old friends involved in his sordid life to play clean-up. And then they tried to use him asking for forgiveness ten times in 20 years to get sympathy from the public? Please spare me. You can beg for forgiveness, but you are not "entitled" to it. It goes without saying that his "friends" are horrible but Jun Seo being made out to be a victim was upsetting. I will admit that he found himself in some crappy situations, but be it because of fear, loyalty or desperation, those were still HIS choices. If he was really that bothered and righteous why did he wait all those years to reveal the truth? Seems more like a pay back for how he was treated when he asked for their help for his daughter. The Victim in this story was captain Jang who got thrown into the whole mess without a choice. Aside from the policewomen, there really weren't any likeable characters, but I guess that's what the story was trying to portray, that we as humans are all flawed. It was an interesting but frustrating watch.