Wow....it was such an enjoyable ride!! The drama is a revenge drama, but its main attraction is the face off between the protagonist and the antagonist. Both of them are equally intelligent and the story is well directed which keeps you on the edge of your seats throughout. I liked that show always balanced the dark tone with humor and is full of amazing actors. The several time leaps were interesting to watch. The background score is good as well!! All in all, a thriller done right and it never feels boring.