This had a lot of potential, but the execution didn't come through here.

Apparently, serial killer guy is in love with the MC. But I don't see how. She's beautiful, intelligent and straight-forward -- sure, but they only met once before he falls in love with her. Their communication is super short - only a few lines of dialogue. They needed to spend some more time making his love believable. Like him being interested in the person who made this app he uses to find his victims, learns about her and then finally meets and falls in love with her. But nope. No build-up whatsoever.

There's nothing deep here. Sometimes it doesn't make sense who he chooses to kill and who he chooses to let go. Why some of the women would meet up with some random person they only talked to once online in some SUPER secluded place, out in the boonies or a building at night.

Almost every woman in this story happens to be a horndog, including the MC. Nothing wrong with that but ALMOST EVERY SINGLE ONE OF THEM throwing caution to the wind for it? Makes absolutely no sense.

The shaman is also random, and I feel is out of left field for the story. Nice having a LGBT character and all, but the shaman thing is still random.

I'm generally a fan of Netflix Kdramas, but I didn't vibe with this one at all.