In a near-future Romania, young Ozana (Silvana Mihai) is chosen to work as a food taster for the leader of forces occupying her country. The sole rule for her to follow is that she must never look this man in the eye.

As a serial killer stalks the city, Julia — a young actress who just moved to town with her husband — notices a mysterious stranger watching her from across the street.

A priest with a haunted past and a novice on the threshold of her final vows are sent by the Vatican to investigate the death of a young nun in Romania and confront a malevolent force in the form of a demonic nun.