Exorcist II: The Heretic 1977

Strange nightmares pursue Rigan MakNil in four years after banishing of bad fairy from its body. A priest-jesuit, sent Vatican, and child's psychiatrist, unite the efforts, to expose the secret of subconsciousness of Rigan. How indeed Pazuzu, demon of air, did return, again lodged in it? African which outlived establishment and banishment of this demon in childhood can appear the key to solution...