A budding playwright and his wife attend a dinner party hosted by wealthy, cultural elites, who have promised to bankroll the writer's latest play to Broadway, but, in fact, have darker designs in mind for the couple.

Following a break-in, Scott and Mara decide to install a deluxe home security system and give their new nanny all of the pass codes. With the codes, the nanny torments the couple by controlling the smart home's system from her laptop.