For the past little while I have had the honour of studying Cassandre Dayne's works. And I get paid to do it, too!
What I like best about Cassandre's work is that she's not afraid to get visceral--in which I mean she will tear the guts out of her characters and paint the walls with them. I've never come across erotica that takes on such dark tones and themes. If you ever find the mainstream erotic romance lacking, and want to find crime, mystery and murder, turn to Cassandre--she'll probably throw demons and monsters in the deal as a bonus.
You can find Cassandre Dayne's works at the Naughty Nights Press store, as well as All Romance eBooks, goodreads, Barnes and Noble, and the almighty Amazon. Don't forget to like her on Facebook!