A desperate woman answers a cryptic ad for a live-in housekeeper at a luxurious yet foreboding New York City high-rise. Upon arrival, she uncovers the building's sinister history: residents have vanished without trace for decades, fueling whispers of a Satanic cult lurking in the shadows. As she navigates the eccentric, secretive community, paranoia mounts—doors creak at night, symbols appear in the walls, and her new "family" hides deadly secrets. What starts as a gig from hell spirals into a fight for survival against ritualistic horrors and twisted loyalties.