Dark Nightmares (Dark Falls, CO)

All I need to do is pretend to be subservient to a man, while I find a killer and save the day. Nicole Salway left Dark Falls eighteen years ago with no intention of ever returning. Destroyed beyond repair, she closed that chapter of her life for good. But nightmares have plagued her for two decades. Nonsensical nightmares that have kept her from leading a normal life. The Dark Falls police department failed her as a young girl, but now she's a detective herself, and her hometown needs her help.
Returning to the place where it all began could crack open her past and leave her raw and exposed if she's not careful. Mason England isn't fond of going undercover without his usual partner, but the state has assigned one of their own detectives to help solve a horrific murder. After all, the victim is the governor's daughter, and all evidence points to a local club. Mason's temporary partner takes his breath away the moment she enters the precinct.
But Nicole is a conundrum. She guards her secrets close, so close that Mason realizes no one has ever penetrated her walls.