The Nun

In the teaser trailer for The Nun, Sister Irene (Taissa Farmiga) says: "I had a series of visions when I was younger and after each one ended, the same thought would be stuck in my head." She reveals that she saw a nun. When word of her visions reaches the Vatican, she is asked to come to an abbey in Romania along with a priest. As she is exploring the abbey, she is stalked by a malevolent force.