Deviant by Callie Hart is the first book in her Blood & Roses series. 
 Oh my, what a dark and twisty tale this is. 
 Sloane's sister has gone missing and she will stop at nothing to try and find her. This is how she ends up trading her virginity for answers via a deal with her shady private detective. She never sees the face of the man she meets but she still dreams about his voice, and his touch even two years later. She also never got the answers she sought. 
 Zeth, he is the faceless man with a dangerous past, twisted desires, and a dark need for Sloane. He discovered her identity shortly after their anonymous tryst and has felt drawn to her ever since. She's too pure for his world though. 
 Circumstances prevail, as they always do, and the two cross paths again. Sloane instantly recognizes who Zeth is once she hears his voice and, like a moth to a flame, she can't stay away. 
 A very dark, steamy tale with a cliffhanger ending. I really enjoyed this book and am eager for the next installment. The characters are dark and damaged and the tension throughout the book is intense. I am not sure when the next book will be released but I'm sure we will find out soon.