Some nightmares are too terrifying to forget…

Paul Mahan just wants to put everything behind him. The shadowy halls of Rookwood apartments, the building's bloodstained past, and most of all, the chilling supernatural presence he encountered there…

But when Neve Cotter, a former Rookwood resident, reaches out to him for help, Paul finds himself unable to turn away. Neve's daughter, Ella, has been possessed by a tortured spirit that Paul freed from Rookwood's haunted grounds. Feeling responsible for the girl's pain, he agrees to accompany a paranormal TV show into the abandoned building, hoping to find a cure for Ella's curse.

As Paul leads the group into Rookwood's labyrinth of shadows and illusions, he discovers that the dark, powerful presence that haunts his nightmares has returned. And it's stronger than ever before. This malignant entity feeds off an ancient power, a darkness that has festered within the building's walls for centuries.

Even the destruction of Rookwood may not be enough to end its reign of terror…