exorcist

He also happens to be a deliverance minister – more commonly known as an exorcist.

“The Exorcism” starts from an instantly compelling premise: On the set of a horror movie about an exorcist, demons lurk.

There are right-wing survivalists, celebrity exorcists, environmentalists and a handful of quasi-socialists.

Dr Joe Aldred, a Pentecostal bishop who works to bring together different Christian traditions, says: "The Church of England has exorcists in pretty much every diocese. The question is how it is done."

Or they can be major, performed by a priest specifically appointed to the office of exorcist and upon someone determined to be suffering "genuine demonic possession."