Incredible! Just truly incredible! I don't watch much crime thriller dramas. I prefer real life crime/thriller documentaries if I'm being honest. So this might actually be the first drama of this genre that I watched. And I must say, WOW!

However, I didn't really get into this drama until around episode 4. The first few episodes were good, especially the way Lee Dong-Shik's (Shin Ha-Kyun) character was introduced and the way the story was suggesting him to be the perpetrator. But it was definitely more like a cat and mouse act for those first episodes. At around episode 4 when more "suspects"/"possible suspects" gets introduced along with their individual stories, is when it starts to get interesting.

This is when the plot really starts to grab you as it starts to make you question and guess who is the real suspect among all the characters. Then more of the background stories of the supporting casts is also shared which thickens the plot even further. I really liked the way they end each episode on a cliffhanger as well, and that it makes you want to watch the next episode to find out what's happened.

In terms of the characters and acting, I really have to give it up to Shin Ha-Kyun and Yeo Jin-Goo because their chemistry and their acting in this drama was just another level. I have never seen Shin Ha-Kyun in any drama before this so I didn't know how good he is and my gosh is he SO GOOD! The way he acted a some-what psycho -ish character but then also had those gut-wrenching emotional scenes, it's unreal. I got scared by his psycho smile, but then also cried and felt heartbroken for him at the crucial stages of the drama.
Yeo Jin-Goo was just as incredible. He really held his own and it's dramas like this that makes you forget how young he really is because of how good and how mature he acts. I will say though that his character is very serious, I don't think Han Joo-Won ever smiled but that's not bad thing. This drama is a crime thriller after all and he's already proven he can act comedic and funny in Hotel De Luna already. This drama just showed that he can do both serious, emotional acting as well as comedic and funny.

Big ups to the supporting cast too. They were all impressive in their acting and their chemistry as a whole. At the episodes where a certain character is being suspected, I really did think that, that person could be the bad guy because of how well the/she acted. On the other hand, when it turned out not to be him/her and the real story of that person is revealed, that certain character's acting complimented that story change too. I felt suspicious of them then felt sad/sympathetic/angry...seriously lots of emotions.

A special mention to the OST/sound mixing too because I think it's a big part of what makes a good drama. And I must say, the soundtrack and sound mixing in this drama is just perfection. I didn't really know what type of soundtrack to expect from a crime thriller drama but golly its good. The sound mixing especially during tense scenes was also very very well done. It did hype up the tension a lot and added so much to the scenes.

Overall, this drama is truly amazing. The story, the cliff hangers, the never ending question of 'who did it'...it will grip you to the very end. It's worth all the accolades it received and certainly worth all the hype!