Princess Diana made a video tape in January 1997 naming her assassin after she received a threatening phone call from a highly placed source.  Her close friend,  Nicholas Carey, a duke with a title dating back to Henry VIII's time and one of the world's most eligible bachelors, has vowed to find that tape and make it public in memory of Diana and his late wife Deborah, who was the princess's close friend at West Heath School for Girls.  Taylor Collins, a beautiful Wall Street attorney, has the tape and is the only woman in the world with no interest in becoming the Duchess of Burnham.  Nicholas lures Taylor to England by promising to sell his ancestral home Burnham Abbey, to one of her clients.   While Taylor is in the Abbey's library looking for the original title documents, she discovers dark secrets about the Careys.   Did Thomas Carey, the first duke, murder his wife to marry the heiress Henry VIII planned to make his mistress?  Were Nicholas and his housekeeper responsible for Deborah's death at the Abbey?  Who is the father of Nicholas' mysterious ward Lucy?   When Nicholas  is accused of murder, Taylor becomes the only person who can save him.   But Taylor's own life is in danger because she knows who killed the Princess of Wales.