在经历了前两集的失败之后,修道士还不死心.他发现那个邪恶的魔方被一个花花公子买走了,于是他以这个花花公子做诱饵来吸引牺牲品,在人间大开杀戒.修道士打算把魔方毁去,这样他就永远不用再回到地狱.但是一个女记者发现了这些可怕的凶杀案,并将修道士又一次送回了地狱.....
半年前，17岁的布兰特（Xavier Samuel 饰）与父亲驾车遭遇车祸，父亲身亡，布兰特和母亲始终没有从伤痛中走出。同校的劳拉（Robin McLeavy 饰）邀请布兰特同去舞会，布兰特木讷的予以拒绝，转头陪伴自己的女友赫莉。当天布兰特独身在野外攀岩，当他来到山顶时，久候多时的劳拉之父将他麻醉带走。 布兰特醒来时，发现自己被困在劳拉家中，这个看上去文静的微胖女孩居然利用自己的父亲将多位男孩绑架，父女二人残酷的虐待他们，最后用电钻把他们的头骨钻开变成嘶哑的痴呆。劳拉的母亲也不能免于折磨，她形容枯槁奄奄一息，被父女二人视为无物。面对这对关系暧昧的怪异父女，布兰特必须用尽一切办法自救……
In the British countryside, the Harver family head out on an idyllic summer camping trip where they can bury past tensions and enjoy some family bonding. But when their camp is sabotaged by an unseen intruder in the night, they head to the nearby creepy old farm desperate for help, where vengeful farmer Hunt Hansen and his hideously deformed son aren't farming animals... Caged and waiting for their limbs to be severed, cooked and eaten one at a time, the Harver family must overcome their differences and unite in order to escape alive!
