What happened to Sadie Nettleton’s twin sister at the psychiatric hospital all those years ago?

Sadie Nettleton fled Slaughter Creek ten years ago, leaving behind the only home she’d ever known—and the only man she ever loved. Unable to cope with her sister's madness, or the terrible secret she and her sister share, Sadie swore never to return. But when her grandfather is murdered, and her sister charged with the crime, Sadie has no choice but to come back and face the ghosts of the past...

For Sheriff Jake Blackwood, time has not dimmed the love he felt for Sadie Nettleton—or the pain of her leaving. Now that she’s back, he’s determined to help her uncover the truth about her grandfather’s death and what happened to her sister at the asylum. As their investigation leads them deeper into a world of secrets, lies, and betrayal in Slaughter Creek, Sadie becomes the target of a madman who will do anything to keep the truth buried. Jake would give his life to protect Sadie. But can he again risk giving her his heart?