一场猛烈的飓风正在逼近美国佛罗里达州的一座小镇。女主角海莉（卡雅·斯考达里奥 饰）在游泳训练中接到了姐姐的电话，他们的父亲（巴里·佩珀 饰）已经失联多时，她非常担心父亲的安危。海莉不顾撤离命令独自前往父亲家中，并最终在地下室里找到了身受重伤的父亲。洪水暴涨眼看就要将地下室淹没，海莉很快就意识到最可怕的并不是洪水，而是隐藏在水中的致命猛禽--鳄鱼。

在一间小屋里目睹了一起残忍的谋杀案后，一名男子躲在一个爬行空间里，而凶手则在里面搜寻隐藏的财富。随着他们越来越近，他必须决定这个爬行空间是他的坟墓还是他为生存而战的战场。

When awkward teen Ronald Wilby accidentally kills a young girl whose sister rejected his affections, his overbearing mother decides to hide him from the law by creating a concealed room in their home for him to live.

A childless middle-age couple adopt a troubled youth they find living in their crawlspace and attempt to get him to rejoin society with tragic results.

A newly-hired and troubled custodian of a local church encounters a dark force beyond his understanding following the mysterious disappearance of a young woman.

The Crawlspace Killer terrorizes a small Indiana town.