This book was fantastic, but not in any kind of normal erotic/ bdsm way. The heroine is a writer of erotica, who is trying to write erotic literature, instead of trash. Her editor, who wants nothing to do with this genre, is trying to help her write an excellent book.
What we find along the way is that she isn't really writing fiction, that all the relationships are strange and unusual, but also gut-wrenching, and not everyone gets a happy ending.
And even though it's erotica, there wasn't really all the much sex in it, but it was still really hot.