Clarissa, the wife of a Foreign Office diplomat, is given to daydreaming. 'Supposing I were to come down one morning and find a dead body in the library, what should I do?' she muses. Clarissa has her chance to find out when she discovers a body in the drawing-room of her house in Kent.

• BBC
• Penelope Keith
• Robert Flemyng
• Thorley Walters
• Holly Aird
• Elizabeth Spriggs
• David Yelland
• John Barcroft
• Jonathan Newth