On the night of London's grandest ball, a bold group of women launches a daring revenge heist against Mayfair society. Mrs. King is no ordinary housekeeper. Born into a world of con artists and thieves, she’s made herself respectable, running the grandest home in Mayfair. The place is packed with treasures, a glittering symbol of wealth and power, but dark secrets lurk in the shadows. When Mrs. King is suddenly dismissed from her position, she recruits an eclectic group of women to join her in revenge: A black-market queen out to settle her scores; an actress desperate for a magnificent part; a seamstress dreaming of a better life; and Mrs. King’s predecessor, with her own desire for vengeance.