3-4 years later I finally watched this and I quite enjoy it.
Although we have to be prepared mentally because it's dark and horrible but the chemistry between the main leads compensate it somehow lol.

The story is sometimes predictable (and not really surprising), a bit confusing but still make you want to watch the next one till the end. It's indeed different from what I've seen in Thai BL (I don't include The Sign, I mean, I was saying from the date released). The acting was quite nice, I love the different settings (in North of Thailand I think?) and interesting story overall and I felt so bad for doctor Bun and her childhood friend but also for other girls..
The side character but important, Rungtiva played by the actress which I first watched her in Ngao ruk luang jai, she was so great in this.

Doctor Bun and Tan look so good together but is it just me or something off (I don't know if it's because it's a bit short and with the case, I didn't think they have times for their relationship?? or maybe I was too focused on the investigation that I even forgot it's BL LOL). However, it was satisfying especially at the end. So it worth the watch.