Actress Frances de la Tour looks into her family, starting out with a tantalising clue that hints she may have aristocratic ancestors. Delving into the history of her three-times great-grandmother, she uncovers the story of a secret lover, an illegitimate child and a landmark divorce case. But the scandal does not stop there and she goes back a further generation, where sure enough she uncovers a tragic story leading her to a historic family residence.