Captured Beauty is beauty and the beast retelling. Our mmc is unhinged and incredibly broken. The fmc was chilled and enjoyed getting to know some the darker parts of herself. This leads to a very twisted relationship.
I enjoyed how dark it went but had a few issues with the flow. There were a few continuity issues, that pulled me out of the story.
It did have many of my favourite things:
Forced proximity, knife play, blood play, touch her and die.

One of my favourite things was the subtle nods to Beauty and the Beast. The teacup in the library, getting a chip in it, top notch inclusion.

It's definitely worth a read if you like your books in the morally black area.