嗜血程度媲美大白鲨、恐怖程度超越大蟒蛇、危险的深海水怪从亚洲偷偷地进入了路易斯安娜流域。在此水域,长期生活在船屋上的居民才逐渐警觉他们的生命正笼罩著极大的危险。恐怖邪恶的大鱼让居民惶恐不安,甚至当居民逃到?近的岛屿,他们发现还是逃不出这条鱼所带来的恐怖威协。
[Fisherman has hand buried in catfish's mouth] Mary: I that thing biting you? Fisherman: Some strange fella stick his hand in your hole, wouldn't you bite him? Mary: [noticing a bamboo steamer on an abandoned boat] This boat had a Chinese crew.