Unspeakable things happened at the Vannacutt Psychiatric Institute for the Criminally Insane — experiments that brought human torture to new depths of depravity … secrets that died with their victims and the practitioners of the demonic acts that masqueraded as medicine. Now there are no living witnesses. Nothing survived Dr. Vannacutt’s excesses; nothing endures except the building in which they occurred. Decades after the Vannacutt Insititute was shuttered, five strangers are invited to spend a night there. Their reward is a million dollars each. All they have to do is stay alive.