Selene Valance walks the neon-lit avenues of Los Angeles, utilizing ancestral clairvoyance to shield civilians from encroaching underworld entities. Her quiet mystic routines shatter when cinema starlet Iris falls prey to a malevolent parasite engineered by an occult-obsessed playboy. Intervening in time to exorcise the creeping demonic corruption, Selene forms an intimate psychic bond with Iris, pulling both women into the crosshairs of ancient infernal lords.
Behind studio backlots, rival starlets barter their souls to hellish creatures in exchange for celebrity stardom, unleashing lethal entities across the city. As underworld enforcers ambush the film crew, Selene sustains grave injuries shielding innocent lives. Iris awakens dormant celestial power to fuse her life force with Selene, forcing both women to risk mortality to purify the sprawling metropolis.
