WHAT A CRAZY DRAMA??

The first 4 or 5 episodes was very fast rythem l couldn't stop watching the five episodes in one shot ??

First episode was very confused the second l was feeling like who is who?but with the third episode we start know things but there was a lot of mystery things but the events keep me watching and every 2 episode there was a plot twists actually there's a lot of plot twists and l love series like that??

This drama is very different from any serial killer TV series l ever watch l don't know how to say why but when l start watching l feel that it's different l was in every episode like "WHAT JUST HAPPENED "? my mind was just like that .
After episode 6 the events start slow down and after 2 episodes the thriller come back and we come back to the main subject of the drama ,the last episodes was very good we know the answers and all the answers were reasonable, the end was very satisfied for me.

There is a big problem in this drama it's very long drama with 20 episodes if they cut 3 or 4 episodes the drama will be perfect , l am a patient person if l saw a promise series l will give it a chance but if anyone who love fast events will feel boring because the slow in some episodes but l reallly enjoy this drama the plot twist the arranging in the events make a great story and of course the cast have a big role too

Lee Hee Joon was very good he give me goosebumps in alot of scenes especially episode 5 l reallly cried ??

Lee Seung Gi l feel he really like serial killer and psychopath?? sometimes when he cry l didn't feel with him but the final episode my tears feel down with his ?? the other cast did great job too

I HIGHLY RECOMMEND ??