A dazzling party. A most daring heist. Never underestimate the women downstairs...   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 unfairly 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.   Their plan? On the night of the house’s highly anticipated costume ball—set to be the most illustrious of the year—they will rob it of its every possession, right under the noses of the distinguished guests and their elusive heiress host. But