Not as tragic of an ending as I expected, but still pretty tragic in a lot of ways.
Glad the good guy won at least, though it seems like a hollow victory at least for now. Provided there isn't some legit possession/soul meld paranormal shit going on, there's hope Shio can eventually recover and realize what was being done to her.
I thought it was a pretty good/solid show overall, held my attention pretty well, especially toward the middle and end. I thought the last episode was pretty well done, it made good use of all the tension it built toward the final confrontation between Sato and Asahi.