A visiting genealogist friend of Hectors discovers a diary which records Katrina's mother, a former servant in the house, as having an affair with someone called ‘H'. Molly is understandably upset by the implications until it is discovered that Katrina's father, the mysterious ‘H' is the genealogist himself.
Casts:
Richard Briers, Susan Hampshire, Alexander Morton, Hamish Clark, Julian Fellowes, Lloyd Owen, Martin Compston, Rae Hendrie, Tom Baker, Kirsty Mitchell