: They discover the abbey is built over a gateway to Hell, originally opened by a medieval duke and later sealed by Crusaders using the Blood of Christ . The gate was reopened by bombings during World War II, allowing the demon Valak to take the form of a nun to mock the faith of the residents.

Set in 1952 at the in Romania, this story centers on the investigation of a young nun’s suicide.

The Nun True Story | Valak The Demon | Abbey of St. Carta Romania

: The Vatican sends Father Burke, a priest with a haunted past, and Sister Irene, a young novitiate who experiences prophetic visions, to investigate the cloistered abbey.

This version, directed by Luis de la Madrid, is a "water-based" supernatural slasher.