I'll start off by saying I really like this drama, especially with how they used the soundtracks. I'm also a fan of the psychopath/serial killer genre and I like how the "cat and mouse" portions were executed. I just felt letdown by the pacing issues that resulted in some early episodes being a bit of a drag and the last episode a rush to tie up loose ends. Some of the writing wasn't great too, with characters (looking at you, Gi-Eun) making the world's dumbest decisions and putting themselves in harm's way repeatedly. Mok-Won's character also felt really random and underutilized, with the show taking pains to carefully carve out her backstory as a shaman, show her meeting girls in the club etc etc and all that just for her to basically not have an impact on the conclusion at all. Instead, I wished they would have tried to flesh out Fingers and Samantha more, as they had close to 0 screentime yet had a serious part to play in affecting the ending.

The acting was amazing, and I was pleasantly surprised to find that the female leads are actually rookies. Kim Young Kwang was also excellent and he really embodied the character perfectly. The cinematography was next level and I really liked the arthouse vibe of it. Too often Kdramas devolve into the cliche "slow-mo" while staring at each other type scenes with the cheesy OSTs blaring in the background and I would say this drama stands out among the rest with its cinematography. The creative use of the soundtrack was also fantastic and I'm so glad to be introduced to Schumann's Vogel Als Prophet lol.

This is an extremely polarizing show and you will either love it or hate it. I can see why many have dropped it - plot that meanders aimlessly in the beginning, characters making horribly stupid decisions, excessive sex/nudity scenes, but I would still encourage thriller fans to give this a chance.