This drama really wrecked me, in a good way and bad way. Actually after concluding this show I still haven’t been able to watch a crime drama. I think it’s safe to say this show scarred me in a way that I can’t properly explain. It both enthralled me and exhausted me at the same time. I had to take breaks in between increments of episodes because it was very intense, even for me, a person who likes this genre. As much as this show captivated me, it's not to forget the problems I had with it.

The first episode did an excellent job of explaining the back story of our main characters, but not revealing too much to the point where the twists became obvious. In the first ep we are introduced to a society where psychopaths can be detected at birth. This does indeed cause a stir amongst new mothers because the possibility of your child being born as such creates a real fear. The issue I have with this is jumping to conclusions. Not all psychopaths turn into killers, but once your child gets that label, you're going to deny them the TLC that every child needs? That aspect of the show was a huge and misleading generalization, and perhaps if handled differently, could’ve saved a lot of people from public isolation and demise. On a parenting level I think Ba Reum’s mother failed him miserably. I found it incredibly sad that she chose to distance herself from her son–her blood–instead of giving him the attention that she should’ve given him. That church scene was a cry to God.

Moochi was entertaining at first but his messiness and slowness to piece things together got very repetitive. Looking back I don’t understand how he kept getting cases. His obsession with catching his family’s killer turned into a nasty alcohol addiction and just not being fit for crime work in general. He might’ve been a great detective when he started but his grief and the stress of the job obviously caused him to get lazy and leave loose ends which led to more tragedy.
I liked Sung Yohan’s character but I feel like he could’ve been utilized better. The female characters were forgettable.

Even though the second half of the show was convoluted I really put all my might into trying to follow the story and keep up to date with all the plots. I did think that towards the end it became more about just finding out who the culprit than figuring out every little thing. Yall, my head started to hurt after every episode because I was literally using all of my brain power to work through this enigma of a show. Was the ending worth it to me? For the most part, yes. Ba Reum being the big bad wasn’t as shocking as the writer wanted it to be, but I was so exhausted from the mouse chase that I was ok with just about anything at that point. Him being the real serial made logical sense in my head considering the brain transplant surgery and the weird hallucinations Ba Reum saw which were his actual gruesome crimes. Ngl the visions kinda gave it away but the whole brain surgery thing was CRAZY. The villain subplot to make a military-like army of psychopaths was stupid and I didn’t care about it one bit. There were so many other things you could’ve made a secret organization do. I would’ve been more forgiving of the plot holes if the core of the show was better. The theme of living in a world where psychopaths are detectable from an early stage is an interesting idea, but the drama didn’t flesh out this concept as much as it could've. Your morals will definitely be challenged watching this and you will definitely get mentally involved if not emotionally.