Dramatisation of PD James's mystery. Lampart throws light on the deaths of Theresa Nolan and Diana Travers and gives his version of Barbara's birthday party. Meanwhile, Dalgliesh and Kate call on Sarah and her radical boyfriend Ivor. Dalgliesh ...... Richard Derrington Kate Miskin ...... Deborah McAndrew Massingham ...... Mark Carey Lampart ...... David Birrell Sarah ...... Octavia Walters Ivor ...... Richard Katz Directed by Peter Leslie Wild.