If you are a fan of badly damaged and maladjusted characters, dark moods, sexual stereotypes and cliches from both women in prison films and East Asian ghost images and don't care about logic or cohesiveness this could be your kind of thing but I don't know why you would remember this example a day later. You might get some entertainment by trying to guess which off-the-shelf/cut-and-paste element will be trotted out next.
This is very derivative. There might be a few people left who will think this mishmash is subversive or pushes boundaries. That would be a naive impression. Every element in this mishmash (I apologize but that description bears repeating) was seen decades ago and better in any of a hundred Japanese films and in other places too but that is the obvious root. We've seen it all before and one would have to be addicted to this kind of content to get anything out of it. It went stale LONG ago. And just to be clear, this is actually a toned down, restrained version. Perhaps that is because it is a Taiwanese rather than a Japanese production.
I have to hand it to the actors and actresses because they had to gyrate, pose and emote in various compromising ways and that had to be a challenge but again, we have seen more and better before. I hope they were fairly paid or at least recognized for their efforts.