Italy, 15th century. Eighteen-year-old Diana makes her first trip in her life: she goes from England to Italy to the man to whom her father sold her. They say this man is a tyrant - he kills, seizes lands and swims in gold. And now he needs an heir, because every day could be his last, but the Visconti family must not die. She is going to her own wedding, but is not dreaming of a magnificent dress. Her plan is to escape. But you can’t escape from Stefano Visconti, and any attempt can be fatal, because the only things more dangerous than the Duke are his enemies.