Searching for twisted thrills, Nick West takes his girlfriend to an abandoned mental hospital to drop acid. But when his date sits on a mysterious chair, she is mutilated and her body is dragged into an unfoerseen demonic black hole. When Nick tells his horrifying tale to the police, he is deemed clinically insane and locked away. Now, four years later, a brilliant psychology professor and his students return to the crime scene with the accused killer, searching for the truth behind the terrifying occult mystery in this blood-drenched supernatural thriller.