Seven feet tall, weighing four hundred pounds, with a rusty iron plate embedded in his skull and sharp nails enough to pierce his opponent's eyes, this mentally ill patient named Jacob Goodnight, who has long been abandoned by society, has been living in seclusion in a dark and mysterious inn for a long time. Until one day, his boring life was broken by a group of young intruders. These boys and girls are all members of the reformatory. Under the supervision of the leading police officer, eight problem teenagers from the reformatory were sent to the inn to complete a period of community service. What they are trying to escape is the guy who the police had previously put a bullet into Jacob's brain but failed to kill him. Soon the killer kidnapped one of them, but it was just a bait. The other offenders who planned to rescue their companions will face a bloody and violent fight. Who will survive to the end...