一个年轻的女人必须通过一场由睡眠瘫痪的现实现象来拯救她自己和她的朋友，从一个古老的罪恶中拯救受害者。

斯州高中十周年聚会上重逢。朋友们说好要在脸书上保持联络。然而，杰西卡开始担心，然而，凯伦在脸书上发给她的消息变得越来越不那么频繁。她安排了一个惊喜突访在卡伦西雅图的家。但当她到达那里，凯伦的男友，保罗，将她拒之门外。他们…

A suburban woman fights to be believed as she finds herself stalked by a threatening figure who returns to her house night after night. When she can't get help from those around her, she is forced to take matters into he…