A seemingly straightforward burglary enquiry takes an unexpected turn when the victim is found to be leading a double life and suspicions are raised that the break-in could have been part of an insurance fraud. Meanwhile, Blaketon falls for the charms of a lady solicitor and teams up with Ventress to help her track down the beneficiaries of an unusual bequest, but the ageing detectives struggle to work in a partnership, and when David is recruited as their driver, he finds himself acting as peacemaker.