5 excellent stars. This is a plot that is so not a trope. 
 Menagerie is a book in which the author made me care so much about the plight of the heroine, as she goes from an American human woman with a promising life ahead of her to a zoo display, shed of every conceivable right that humans - or traditional human pets - have, shred of her clothes, and put on display in a travelling circus. All of which is perfectly legal according to the law of land. 
 I had to pause the narrative several times, to tone down my rage and brush away the horror at her plight, before continuing. 
 Hard to categorize: not horror, not erotica, somewhat paranormal, not dystopia yet set in a different America today, not a romance. Totally captivating, so hard for a guy with empathy to read, yet once started I had to finish. 
 My disclaimer: I bought the book, I don't know the author and I wasn't asked to review it.