The film Adore is based on this book. I‘m addicted to it. It‘s like Blackfish. Watch it all the way thru & start it again. Finally bought the book. Good enough, but different. Meaner and with less char depth. Has the strangest premise, but this explains it. I am thoroughly absorbed by this one character and his sexual and emotional earnestness. That part is in both.
https://ew.com/article/2013/09/09/xavier-samuel-adore-naomi-watts-robin-wright/