The young teacher Adam and his wife Lisa are waiting for the completion of the family. In an instant, the idyll of a happy couple collapses. They are faced with an unknown evil that turns their lives into hell. In the hope of getting rid of the horror that is pursuing them, Adam begs the help of parapsychologist Clark. When he begins work, Clark realizes that the ominous entity they encountered is much more dangerous than he had imagined. And then the terrible truth about this nightmare is revealed to the spouses.