Mahtab lives in Tehran in 1996, along with her 10-year-old child, Erfan. She has got divorced from her husband, Morteza, who is in jail. Mahtab has enrolled her child in a karate class so that he does not end up like his father as far as his character is concerned.

In 1978, the inhabitants of Zalava, a small village in Iran, claim that there is a demon among them. While investigating the strange case, Massoud, a young police sergeant, crosses paths with an exorcist.