The show started strong and the location of this show is refreshing, showing other parts of South Korea we viewers don't see often. The mid episodes kind of loss traction as more characters and more plot lines emerged, but I commend the makers of the show by putting everything together on the latter episodes. Highly recommended for anyone who likes mystery/thriller/crime dramas. OST is pretty good also, especially Jin's 'Yours'. The show truly deserves its high ratings, thank you tvN for another remarkable show.