So much people I know who have reservations in watching this show, but once they watch it its in their top 5. Just give it a go. I've watched this when it aired and in total I've watched it maybe 9 times now. The characters won't make any sense in the first few episode but as the suspense builds you'll understand them. And kdramas will do what kdramas does best with your emotions all over the place. So get ready for this rollacoater and sit back and just watch it ffs!! And I have to write some other words to fill in the character which I don't understand why, so you can just forget this part of this essay. Peace.