The plot of this show is interesting and all of the actors are amazing. The three main leads (including the villain) show incredible acting skills. Especially the villain. That person absolutely have me chills. The side characters are great as well. Especially Oh Hyeon Ho (played by Ye Sung) and Park Eun Soo (played by Son Eun Seo). When those two were on screen together, those were my favorite scenes to watch. They just worked really well together.

My biggest issue with this show was the gore. Not the violence so much because since it's a cop show there has to be villains and I understand that, but it seemed at times that the gore that went along with the violence was gratuitous. Because of that, I often had to pause watching the show and watch something else for awhile. It was just a little much for me.