Comedy thriller by Joyce Porter, dramatised by Paul Mendelson. Inspector Dover, with less than total enthusiasm, investigates the murder of a mild-mannered philatelist in a holiday camp. His sergeant, however, cares a bit too much. But as the investigation begins to uncover a sinister conspiracy, even Scotland Yard's laziest detective becomes determined to catch the killer. Chief Inspector Dover ...... Kenneth Cranham Sergeant McGregor ...... Stuart McQuarrie Dr Hirst/Nora Hull ...... Joanna Tope Captain Maguire/Sven ...... Michael Mackenzie Sir Egbert Rankin/Rupert Pettit ...... Finlay McLean Inspector Telford/Osmond ...... Nick Underwood Sandra/Doreen Knapper ...... Lucy Paterson Mavis/WPC Elvira Marchmount ...... Samantha Young Other parts played by members of the cast. Directed by David Ian Neville.