Demoted from celestial honor after unwittingly unlocking the infernal gates, the novice angel Raphael receives a redemption assignment: purge demonic corruption from a secluded mortal parish. Upon arrival, he encounters Father Lucien, a serene, charismatic cleric whose tender ministrations soothe the celestial visitor's weary spirit.
As Lucien initiates him into earthly joys and quiet intimacies, Raphael feels his sacred vows eroding under the priest's hypnotic gaze. The horrifying revelation that Lucien is Lucifer himself ignites a divine crisis, leaving Raphael trapped between archangelic judgment and a seductive dark devotion that threatens the mortal realm.
