Unlocking Darkness by Kennedy Layne

Mitch Kendall was welcomed home after sixteen years by a murder investigation that plagued every member of his family. He wanted the dark cloud lifted that hung over his return, so he did the only thing he could—he called in a favor from an old friend.

Allie Delaney spent most of her adult life building her career as a special investigator solving cold cases for the New York Police Department. She loves her city and would never consider leaving the bright lights, but she was willing to take a well-deserved vacation to pay back an old friend.

While Mitch and Allie work together to hunt down a rural serial killer, their attraction spirals out of control. As they begin to mix business with an intense pleasure, they draw nearer to a malevolence that has been secreted away for over a decade. They might find themselves wishing the sins of the past had stayed buried when the evil in the darkness reaches out for them.