A newly reunited young couple's drive through the Pacific Northwest turns into a nightmare as they are forced to face nature, unsavory locals, and a monstrous creature, known to the Native Americans as Oh-Mah.
故事设定在《电锯惊魂》第一、二部之间，患病而绝望的约翰·克莱默（托宾·贝尔 Tobin Bell 饰）前往墨西哥进行一次危险的实验手术，希望能奇迹般地治愈癌症，却发现整个手术都是场骗局，旨在欺骗最弱势的群体。抱持着全新目的后，“竖锯”，这位臭名昭著的连环杀手重操旧业，开始对付起这些骗子。
莫德是一名年轻的宗教信徒，她的职业是私人护理员，她在拯救迷人的病人阿曼达的灵魂时，对其产生了极为危险的迷恋。
一个长肿瘤的中年妇女呕吐出一滩奇怪的肉球，没想到肉球竟爬到她儿子嘴里慢慢转变成了一只丑恶的食肉怪物，就连她的儿子也变得性情暴躁乱杀无辜并用人肉喂食怪物，荒诞古怪的故事才刚刚开始……
The Richardson family celebrates their 28-year-old daughter's pregnancy in Northern California. The celebration is interrupted when a Satanic cult member, Aksel Brandr, pays them an unexpected visit. Aksel, on behalf of the cult's leader Henrik Brandr, offers to pay the family a large sum for ownership of their land. Jacob Richardson, the father, rejects the offer due to the priceless sentimental value of their home. Henrik and his cult, displeased, begin to put devastating curses on the Richardsons, trying to force them off their land - even if it means murdering them. After suffering unexplainable tragedies, the Richardsons seek help from Marybeth, a white witch high priestess. They soon discover a terrible secret about their home, revealing why it is so valuable to the cult. They realize they must protect their property from the cult at all costs, and a violent battle between good and evil ensues.
An alien starship crashes in a swamp in a U.S. National Park. Some mosquitos begin to feed from the alien's corpses, causing them to grow to the size of a vulture. These mutant insects became very agressive, killing every human being they find. Will the few survivors fight successfully against this nightmare...?
A man recently released from a mental institute inherits a mansion after his parents die. After a series of disturbing events, he comes to believe it is haunted.
由于梦想与现实之间的界线越来越模糊，一位雄心勃勃的教授陷入了谋杀一名睡眠研究参与者的困境。
“有些人要死在灰姑娘手里”。
一对夫妇野营旅行时，碰见了正在行凶的罪犯，并在准备不声不响离开时绊倒了的悲惨故事……
