An utter disappointment is what this drama is. It's suspenseful till about the 6th episode and then it starts going downhill. And after all, the plot twists that were shown before turned out to be pointless at the end. And a lot of points in the story either don't make sense or are just ridiculous (it's difficult to mention exactly what cause they would be spoilers).
Anyway this drama starts like it's going to be a psychological suspense drama but then ends up being a human drama.

The cast and their acting is really good but I'd rather see a terrible cast acting in a garbage story like this.
I loved the ending theme song...it really suits a suspense drama well. But anyway it's pointless enjoying the ending theme and the acting cause the story is rubbish..

Needless to say, I won't re-watch this drama again.