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.