Berowne's daughter clearly has a secret that she has not shared with anyone except Ivor Garrett. Dalgliesh re-interviews Lady Berowne, Sir Paul's mother, and she lets it slip that he had a mistress. She is Carole Washburn who tells Dagliesh that Berowne had gone through a religious conversion. She refuses however to disclose anything else about their relationship other than they met at work and were always discreet. Dalgliesh visits the site where Diana Travers drowned and learns from the restaurant doorman, Henry, that Berowne was there the day of the drowning and was seen soaking wet. He also meets Millicent Gentle who, she says, was expecting him. Insp. Miskin meanwhile struggles with her own guilt over her grandmother who cannot live alone and who she wishes to put into a care home.

—garykmcd

Millicent Gentle tells Dagliesh of the day Diana Travers died. Annoyed by the revelers on the water she had gone out and saw Sir Paul Berowne fighting with another man. He was soaking wet and she invited him back to her cottage to dry off. Berowne admitted the fight was about a woman and they spent about two hours talking. She also saw him on the day of his death when he came to visit but he had little to say and left quietly. Dalgliesh quickly determines that Berowne had fought with his brother-in-law Dominic Swayne who denies killing him. Dalgliesh is upset to learn that Travers was a Special Branch operative. Carole Washburn tells Miskin that nurse Teresa Nolan may have had information about Stephen Lampart's clinic. Insp. Miskin meanwhile rushes to the hospital when she learns her grandmother has been mugged.

—garykmcd