Cruel by Trisha Wolfe

I was born a psychopath. But he made me a killer.

Revenge is a lucrative business, and for Blakely Vaughn, it’s more than just profitable, it’s fun–until it becomes personal.

As a biomedical scientist, Dr. Alex Chambers has devoted his life to the study of curing diseases. When he loses someone close to him to an act of violence, he vows to cure the illness he believes is at fault.

Blakely and Alex collide on a path of immeasurable ruin. A quest to avenge a loved one sparks a dark and deadly obsession, where a dangerous union of cruel minds raises the question: How far is too far?