I almost lost interest from the second and third episode, the acting was fine in them but they didn't add anything to the main story, but I decided to continue as the first episode was so good. I'm glad I did, when I reached the mid-episodes I was completely hooked, watching multiple episodes a day, which I never normally do with K-Dramas.

The acting especially by the main two actors was brilliant, perhaps the best performances I have ever seen. I wonder why the main guy didn't return for the second and third episodes? (I probably just haven't found about it on the internet).

I loved the twists, turns, shocks that associated themselves with this show, and I'm definitely going to check out the next seasons. The only improvement I wish upon is to focus entirely on the story, instead of a couple of episodes which seemed to be a little irrelevant in my opinion.