Stamp Duty Boon : Season 6 Episode 13

In the weeks leading up to Christmas, Lawrence Drake, a rich ex-racing driver, asks Ken to watch his wife, Pamela, whom he suspects is having an affair. Lawrence feels that he has nothing to offer Pamela because he is now crippled after an accident on the racetrack. Pamela and her boyfriend, Alex Cavendish, are robbed at gunpoint while driving home from a restaurant late at night. Pamela's jewellery is stolen and she receives a blackmail request: ""pay up and you'll get the jewels back"". She starts to gamble heavily and tries to borrow money from loan sharks in order to raise the blackmail money. Ken follows Pamela and sees her with her lover. He then gets Laura to visit Alex, posing as ""Briony Carling"", a magazine researcher, and soon learns his name and that he is a wine importer. Later, Pamela sees Ken while he is following her again. She pleads with him not to tell Lawrence about Alex or the jewellery because she doesn't want to hurt him. Alex is in league with the thieves. At a win