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……
落魄潦倒的革命者鲍勃（莱昂纳多·迪卡普里奥 饰）终日生活在草木皆兵的偏执状态，他与世隔绝，只和坚韧自立的女儿薇拉（蔡斯·英菲尼迪 饰）相依为命。然而，当鲍勃的宿敌（西恩·潘 饰）在16年后再度现身，女儿也突然失踪，这位曾经的激进分子仓促踏上了寻女之路，父女二人不得不直面他过往行为种下的恶果……
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!
