2024’s The First Omen is one of the best prequel horror movies of all time, but it stands on its own merits as an excellent possession flick. The story follows a young American woman (Nell Tiger Free) who travels to Rome to begin her service at a Catholic orphanage during a time of political unrest in late-’60s Italy. There, she encounters a malevolent force that shakes her faith to its core and unravels a chilling conspiracy, one designed to usher in the birth of the Antichrist.