A woman gets locked in series of strange tubes full of deadly traps.

After a series of disturbing supernatural events in his home, Joel, a young  single father, comes to suspect that his young son may be possessed.　　约尔是一个单身父亲，在他的家中出现了一些列超自然灵异事件滋扰以后，他开始怀疑自己的小儿子是否被附身。