Behind imposing iron gates, hidden from the main road, sits a secluded mansion in the Louisiana bayou. Those who reside there are not guests. They're patients. When the sun goes down, the experiments begin . . .
The Sleep Disorders Institute specialises in lucid dream therapy. It offers a privileged few the chance to manipulate their dreams and live out their most secret fantasies in the private refuge of deep sleep. But something is going terribly wrong . . . A female patient is strangled. A local couple are slaughtered in their home. And the unnerving, distant buzz of a chainsaw claws through a moonlit night. Someone's demonic dreams have come to life, and the night has only just begun. So have the nightmares . . .