Oh man,,,, lam just speechless after watching this brilliant k drama.One of the best dark intense investigation drama i seen so far. Very intense story with well executed screenplay and some outstanding performances. Actually i felt something weird from the start because the story telling was entirely different and also i have no idea whats happening in the start. Once they enter into the main plot the things are getting really excited. A slow pace making which was good ..

Story -
As i said above the story was different and mind blowing from the beginning. A set of mysterious murders take place without any trace or evidence, the dectatives are trying very hard to figure out the killer. ,There is child abuse and things are quite complicated and even more suspicious. The dectative suspect many people involved in the spot or related to the victims. The investigation going deeply and it also involved emotional pain and suffering.There are some hard hitting emotional moments.. last 5 episode before the finale was just outstanding..

Acting -
All characters are awesome and real. Some of them are very mysterious. You will definitely fall in love with each and every characters

Music-
This is a throughout investigation journey, so the back ground score playing an important part of it. And it was superb. It makes this drama more intense and realistic with that extraordinary bgm.

Making -
Am so stunned to see the technical side of the drama, especially cinematography. It looks so real in each and every frame. The dark scenes are looks so magical and it created a horror feeling in some shots.

Last word -
You guys should just give it a try, its not an ordinary style drama, it has even more realistic emotional intense and mysterious after each and every episodes throughout from the start to end. It will surely surprise you

ONE OF THE BEST INTENSE DRAMA I SEEN