Two love stories, one historic and one contemporary, are interwoven. The famous romance between King Edward VIII and American divorcée Wallis Simpson is juxtaposed with the affair of a Russian security guard with a New York trophy wife Wally Winstrhop. Wally is obsessed with the story of Edward and the woman he loved, and embarks on her own research of their life together, even attending the Sotheby's auction of the Windsor Estate. She comes to see that their relationship, although glamorous, was not the perfect one that she had imagined it to be.
- Abbie Cornish.....Wally Winthrop
- Andrea Riseborough.....Wallis Simpson
- James D'Arcy.....Edward
- Oscar Isaac.....Evgeni
- Richard Coyle.....William Winthrop
- David Harbour.....Ernest