The stars of the new HBO drama series from the Downton Abbey creator will feature Christine Baranski, Cynthia Nixon, and Amanda Peet. HBO describes the show as a series set in 1882 during the American Gilded Age, which is a "period of immense economic change when huge fortunes were made and lost, Marian Brook, the orphaned daughter of a Union general, moves into the home of her rigidly conventional aunts in New York City. Accompanied by the mysterious Peggy Scott, an African-American woman masquerading as her maid, Marian gets caught up in the dazzling lives of her stupendously rich neighbors, as she struggles to decide between adhering to the established rules of society, or forging her own path in a new world on the brink of transformation."