Twenty years after a serial killer murdered four families and was himself killed by the only surviving member of the final family, homicide detective John Calvino--the lone survivor of that killing spree--fears for the safety of his own family when someone recreates the murders of two decades ago.

Once the center of madness, suicide, mass murder, and whispers of things far worse, the 1800s Gilded Age palace known as the Pendleton, has been re-christened in the 1970s as a luxury apartment building. But now inexplicable shadows caper across walls, security cameras relay impossible images, phantom voices mutter in strange tongues, not-quite-human figures lurk in the basement, and elevators plunge into unknown depths.

The last of the survivors in Rainbow Falls, Montana, band together to brave the onslaught of the creatures set loose upon the world, discovering the full scope of Victor Frankenstein's nihilistic plan to remake the future.