I’ve been watching k-dramas for more than 10 years, and this is just one of the bests. If there was ever an Oscar award for a Korean drama, I would strongly recommend this drama. OMG..... it keeps me off my seat. I’ve received the frustration and fear just like the main actor and victims do in this drama. I’ve finished 6 episodes so far and can’t wait to see how it’s unfolded. The Directing is on point, acting is on point, thrilling cinematography is on point, everything is just on point. Highly recommended!!!!