This drama has to be one of the best in the horror genre. The plot, the characters, the star cast, the soundtracks, everything about it is just perfect.
Honestly what got my attention was the fact that Lee dong wook was playing the role of the primary antagonist and it was absolutely intriguing to see him as a creepy yet chamring psychotic dentist.
Wish there were more episodes though, i can't seem to get enough of it.