In early 18th century England, a frail Queen Anne occupies the throne and her close friend, Lady Sarah, governs the country in her stead. When a new servant, Abigail, arrives, her charm endears her to Sarah.
- Olivia Colman as Anne, Queen of Great Britain
- Emma Stone as Abigail Hill
- Rachel Weisz as Sarah Churchill, Duchess of Marlborough
- Nicholas Hoult as Robert Harley, 1st Earl of Oxford and Earl Mortimer
- Joe Alwyn as Samuel Masham, 1st Baron Masham