When a young American woman is sent to Rome to begin a life of service to the church, she encounters a darkness that causes her to question her own faith and uncovers a terrifying conspiracy that hopes to bring about the birth of evil incarnate.

Cecilia, an American nun of devout faith, embarks on a new journey in a remote convent in the picturesque Italian countryside. Cecilia’s warm welcome quickly devolves into a nightmare as it becomes clear her new home harbors a sinister secret and unspeakable horrors.