This is really worth watching. Interesting plot which keeps you binge watching until end. Contains all elements comedy, romance, action.
First few episodes plot may seem like a normal storyline. But later on the story becomes unpredictable.
Acting is really good. Since they're top rated cast they did accordingly well. Regarding OST's I don't even remember listening to OST in this drama.
It contains only 12 episodes, so easy to complete. I started watching it since reels based on this seems good, but got hooked to it until last.
To put it simply
BEST PSYCHOLOGICAL THRILLER SERIES!!!!