Lucy Worsley tells the story of Bolsover Castle in Derbyshire. Built in the early 17th century, Bolsover Castle became the pleasure palace of playboy Cavalier and ambitious courtier William Cavendish. Guiding us on a tour of the castle and its remarkable collection of artworks, Lucy brings to life the spectacular masque held by Cavendish to win the favour of King Charles I. And from within the walls of this eccentric architectural gem emerges a colourful tale, capturing the tensions of early 17th century England that would eventually lead the nation to civil war.