The premise was interesting and it had such a strong start but it soon turned into a meddled mess. Literally what happened?

Given the plot I couldn't help but think of Love Alarm while watching this. When you mix technology with murder things can get interesting, and for at least the beginning of the series the killings were enough to sustain my interest. However as time went on the buildup towards that last episode wasn't satisfactory AT ALL. I'm not gonna get into the ending for spoiler reasons but with such a good setup, why was the ball dropped?

Kim Young Kwang was captivating as Yun O. I don't think it's unpopular to say that he was the best part of the show. His natural performance made me feel like the killings were a part of his everyday routine. I also have to commend how raw and intimate his sex scenes felt. Especially the ones between him and Kim Sum. They were so good I felt like I was partaking in something I shouldn't be. Their chemistry and honest acting together carried the show. Gi Run was pretty good. She played a disabled person extremely well and despite the character's shortcomings she was still very capable. Wish she had a bigger role in catching the bad guy. Mok Won was rather forgettable and her storyline was difficult to keep up with but I'll give points for representation. Overall the character's could've been better fleshed out because the skeletons were pretty good. We just needed a bit more flesh to complete them.

I wouldn't recommend this tho. The payoff isn't worth it at all. There's better thrillers out there so def skip this one.