Summer, 1926. When Thelma Morgan marries Viscount Duke Furness after a whirlwind romance, she is immersed in a gilded world of extraordinary wealth and privilege. For Thelma, the daughter of an American diplomat, her new life as a member of the British aristocracy is like a fairy tale - even more so when her husband introduces her to Edward, Prince of Wales. Her marriage to Duke leads her to fall headlong into a love affair with Edward. Their love is threatened when Thelma's sister, Gloria Morgan Vanderbilt, becomes embroiled in a scandal with far-reaching implications. As Thelma sails to New York to support Gloria, she leaves Edward in the hands of her trusted friend Wallis, never imagining the consequences that will follow.