it was a great plot, no doubt. The sequence of events occurring in the drama kept me on the edge most of the time. but I think that the story progressed way too fast. At some point it was becoming difficult to keep track of the events. Dong Baek's past was given very little screentime, infact, we had to wait until the end to know about his special ability. Well, the acting was great, both of them were fabulous, also I think Sun Mi deserved a little more recognition, she was an absolute talented girl. Also, I would have liked a little more depth in Sun Mi's past but anyway, whatever they've shown wasn't bad either. I greatly recommend this, if you all love thriller dramas