In 1998, lonely New Yorker Wally Winthrop (Abbie Cornish) is obsessed with what she perceives as the ultimate love story: King Edward's VIII's abdication of the British throne for the woman he loved, American divorcee Wallis Simpson. But Wally's research, including several visits to the Sotheby's auction of the Windsor Estate, reveals that the couple's life together was not as perfect as she thought.