Episode Detail: Hetty Wainthropp Investigates: Childsplay - Mystery!
When Hetty Wainthropp's quiet grandnephew (Joe Roberts) is “excluded” from school for drug possession, Hetty (Patricia Routledge) suspects a frame-up, so she poses as a cafeteria worker at the school. And Geoffrey (Dominic Monaghan) poses as a student. But he's late in arriving because the VW “bug” he wants to buy broke down on the way, and he was stranded overnight with the girl (Suzanne Maddock) who wants to sell it to him. Peggy Rainford: Siobahn Finneran. Malcolm Rainford: Richard Huw. Mr. Cavendish: Tim Preece.