(WARNING, LONG REVIEW AHEAD!!)
so i'll really try my best to explain this drama so much since the overall story seems very interesting for me. from an dating app and love, to sexual assault and murder. I also read from an review that this drama has so much potential, most especially this drama was psychological one. But after all completing all the episodes from this drama, that how explains why this drama was complicated but at a same time, giving so much potential to viewers as well. I think this was too far from any kdramas I've watched, but this one feels like a western type of series as well.

Plot:
So it explains about a student from becoming a developer as she invented her called app AI social connecting app "Somebody" where anyone could talk and chat with each other. Well due to sum's communicating problems, she made her invention until Kim Sum was part of the team of the app. Until cases regarding the app was spreading and getting involved from a murderer slash serial killer, Yoon O. From murdering most women who get involved by the app (or like being matched). He has different identity to his personality, where he acts like what women likes, but he acts like his true self to Kim Sum, who was also a murderer. and Kim Sum as she was (kind of) responsible of the case, she get's to know Yun O untill she fell in love with a serial killer. She was so needy to love and sex and at the same time both of them were murderers to begin with. I kinda had a hard time explaining the story because it was pretty messy to begin with. Involving Yun O's story without the background story of his childhood days, and I was thinking maybe because of his trauma(?) or something bothers him that he turned to be a murderer. And with that, Kim Sum's friends got involved due to the dating app. And the problem of the story evolves the app overall that messes their lives from the beginning. So one of Kim Sum's friend who also got involved, Gi Eun as she was a detective, while Mok Won was a shaman as she senses spirits between her friend Kim Sum and her match from the app, Yun O.

And with that, the ending was hmmm very surpising for me. I really thought Kim Sum would ended up falling in love with benefits regarding love and sex with Yun O. But due to her decision making with her friends and for the safety of her colleagues as well, she killed him. And for me, I think it needs more background story of Yun O and Kim Sum and I think its not just me, but there is something really missing, that's why I rated it not a perfect rating but just a good one.

Characters and Cast:
HOOOOO this one was far exceeding so much with my expectations. I was thinking did they tried to be away from their characters because this one was far away from kdrama land haha. The characters from this story (while some of them) were hypocrite and desperate from what they like as well. I guess the characters were something that I was never expecting to be because from the plot itself, it was away from the overall story of the drama. Just the outside background of their lives. Now I'll go with the casts, especially I watched this drama because I was really interested of Kim Young Kwang's choice of drama projects after all this would be my second time watching his role from kdramas.

First of all, Kim Young Kwang acted this role FAR FAR from his previous roles especially my last kdrama that I watched with him was the secret life of my secretary. He made this role far from his career as well! but not to make myself look weird, but he really looks very attractive and all those *ehem* scenes from this drama. He need roles like this especially regarding murder or dark themed genre of kdramas to sum up everything. Kang Hae Lim, I never expected to see her change from her supporting role from Live On kdrama. She turned from her role from being a bully or a mean girl, to a desperate young adult women who seeks for love and sex. I was really surprised by her chosen projects and her acting career path as well. Both of the casts has something that gave chemistry in me. But I was thinking if they were comfortable filming "those scenes" and I saw that they were in touch on instagram since they followed each other as well. kinda sus haha. And also with the other cast, Kim Yong Ji as I a saw her from the last drama appearance of a kdrama I finished watching, The King: Eternal Monarch. But in short, she changed so much as well from this role. With the casts, the bts photos seems like they were happy with their roles and the bond they had with the production team and the actors and actresses who were involved. I'm rooting for the three of them actually.

Overall, this drama was giving me that feeling of darkness and feeling of emptiness in me, But it gave me a creepy vibe on the end haha. I was really surprised as well, but Hoping that these casts would have a greater recognition as well.
I would say this drama was only good for time kill. since I skipped some unnecessary scenes to it, but overall, it was a pretty good one. BUT not for beginners as well since it needs more patience and understanding.

but in a positive side, looking forward to the casts other projects! especially to kim young kwang <33