King's tour of unsavory mystics includes a dying priest confessing that exorcisms are real, a funeral director who practices necromancy, and a Satanist couple, more sleazy than spooky. But when he begins behaving strangely after one of these encounters, King doesn't retreat; he investigates … intelligently. He goes to a psychiatrist; he has his audio recordings analyzed. He's as curious as we are, and the film is more engaging because of it. Alas, after a promising start, rote possession imagery eventually becomes the focus, culminating in a by-the-numbers ending. But even then, the film offers some new shudders -- King's demonic guest has an affinity for ants, and Jung uses them to unsettling effect.