When Sarah McKinley is finally in a position to purchase and restore the historic Florida mansion that she has always treasured, she dismisses the horror stories of past residents vanishing and a long-dead housekeeper who practiced black colored magic. Then, amid renovations, she makes a grim finding. Hidden within the wall space of Sarah’s dream home are the remains of a large number of systems – some dating back again over a hundred years. The door to the past is blown wide open when Caleb Anderson, a private investigator, displays about Unhallowed Floor up in the mansion. He feels many current missing-persons situations are from the home and its own dark past. Functioning together to find the connection and prevent a modern killer, Sarah and Caleb are compelled to research the history of the haunted house, growing nearer to each other even as the answer towards the murders eludes them. But there is certainly one who understands the reality…a nature who follows every move they help to make. Soon Caleb begins to dread that if he can’t stay a stage forward, he could eliminate Sarah to a killer with an ability to transcend amount of time in a quest for blood and sacrifice.