洛杉矶警探乔瑟夫是个标准败类，嗑药嗑得比谁都勤快，调查命案不忘顺手牵羊，更枉顾家中妻小，专搞迷人可爱的阻街女郎。一宗幼童谋杀案现场，乔瑟夫捡回一只受过诅咒的奇异盒子，打开后怪事不断一桩接一桩：昨夜搞上的妓女意外身亡，他瞬间成为头号嫌疑犯；一连串似幻似真的恐怖体验更不断尾随，无脸怪人四处追杀人群，《养鬼吃人》系列当家猛鬼－针头鬼（Pinhead）也重出江湖，一个头两个大的乔瑟夫该如何解决这谜一般的虚实梦魇？A shady police detective becomes embroiled in a strange world of murder, sadism and madness after being assigned a murder investigation against a madman known only as "The Engineer".
