In the US, over the past 10 years, the number of official priest exorcists has more than quadrupled from 12 to 50.
But for two of America’s most active exorcists – Father Gary Thomas, whose training in Rome was chronicled in Matt Baglio’s book The Rite: The Making of a Modern Exorcist, and Father Vincent Lampert, whose work was depicted on Paranormal Witness – it is an ongoing struggle to keep up with the demand.