The raw feel of found footage and the familiar iconography of religion have made both popular in the horror genre. A found footage horror movie deeply rooted in Catholicism seems like a natural fit. The Devil’s Doorway is an excellent example of something being a better idea in theory than practice.
The Devil’s Doorway has an interesting premise. A former real life practice of the Catholic Church were Magdalene Laundries found in Ireland. These institutions were basically homes for prostitutes, unwed mothers, and other “fallen women.” The movie is set in 1960 and based on footage of two priests who had gone to investigate a supposed miracle.
http://www.adventuresinpoortaste.com/2018/07/14/the-devils-doorway-review-a-little-too-much-and-way-too-familiar/
http://www.adventuresinpoortaste.com/2018/07/14/the-devils-doorway-review-a-little-too-much-and-way-too-familiar/