An agoraphobic inherits her father's house in a remote part of the Florida Keys. When weird things start happening, she discovers that there's something far more terrifying trapped inside the house with her.

For a thousand years, the Reapers guarded mankind from the demons that wait in the dark. Now, at the beginning of a new age, the Reapers are betrayed and slaughtered. Only one Reaper remains - Red, and she's out to exact revenge.