I'm going to be honest i don't usually watch this kind of series but this one was an exception. I saw some trailers and i felt that this was something different and mysterious. The beginning was good and captivating but when the whole story was almost done they just kept trying to add this and that. Overall was a pleasant drama and the most awesome thing was the villain, omg the actor was freaking amazing passing the image of a psychopath, i was so surprised and shocked...Lee Joon was brilliant and give the right feelings to this criminal history.