本片在澳大利亚80年代初才被允许放映。 电影取材自50年代连续杀人魔Ed Gein的真实事迹。 几个年轻人——Sally (玛丽莲·伯恩斯 Marilyn Burns 饰) 、Franklin (保罗A. 普泰 Paul A. Partain 饰)、Jerry (阿伦·丹齐格 Allen Danziger 饰)、Kirk (威廉·韦尔 William Vail)和Pam (泰瑞·麦克明 Teri McMinn 饰),驾驶房车驶入荒漠中的德州特拉维斯镇。途中,一个满身伤痕、丧魂落魄的搭车人(埃德温·尼尔 Edwin Neal 饰)。勾起了他们的好奇心,他们在他的带领下进入一幢阴森大屋试图弄清真相。大屋被一股神秘、恐怖的氛围所笼罩,仿佛有一双眼睛始终在窥视着他们的一举一动。正当这群年轻人惊恐万分、不知所措时,电锯声骤然而起,他们最后的噩梦随之降临……En route to visit their grandfather's grave (which has apparently been ritualistically desecrated), five teenagers drive past a slaughterhouse, pick up (and quickly drop) a sinister hitch-hiker, eat some delicious home-cured meat at a roadside gas station, before ending up at the old family home... where they're plunged into a never-ending nightmare as they meet a family of cannibals who more than make up in power tools what they lack in social skills...