Orson Welles was 26 when he made his first feature film, Citizen Kane. The film became known as one of the greatest of all time and earned him international celebrity. Multimillionaire newspaper tycoon Charles Foster Kane dies alone in his extravagant mansion, Xanadu, speaking a single word: "Rosebud". A reporter tracks down the people who worked and lived with Kane, hearing their stories as they attempt to unlock the riddle of his dying breath.