Exorcist II: The Heretic (1977)
Four years post-possession and exorcism, Regan MacNeil is haunted by unsettling nightmares, raising fears that the demon may have returned. To confront this looming threat, a Vatican investigator teams up with a research expert, combining their faith and intellect in a desperate quest to liberate her from the malevolent force's influence. Will their efforts be enough to save Regan from the darkness that threatens to engulf her once more?
