London, 1978: Seventeen-year-old Diana Spencer is invited to a game of polo. She herself comes from one of the most prestigious noble families in the country, and the world she finds herself in today is no stranger to her.

On the contrary, a flirtation with the future king of Great Britain begins here, which will change her life forever: Less than three years later, she stands in front of 3,500 invited guests in St. Paul's Cathedral and celebrates the wedding of the century. But even though daily life in the royal family with its strict protocol doesn't suit her, and Charles doesn't return her love, she finds her own way - and the world will soon be at her feet...