Peter Coke and Marjorie Westbury star in another intriguing case for BBC radio's smoothest sleuth and his glamorous wife.

From 1938 to 1969 the fictional crime novelist and detective Paul Temple, together with his Fleet Street journalist wife Steve, solved case after case in one of BBC radio's most popular series.

They inhabited a sophisticated world of chilled cocktails and fast cars, where the women were chic and the men wore cravats - a world where Sir Graham Forbes, of Scotland Yard, usually needed Paul's help with his latest tricky case.

This adventure begins with a body on a train, the word 'Alex' scrawled on the compartment window, and the discovery of a visiting card bearing the name 'Mrs Trevelyan'. More bodies follow, and the two names recur on each occasion.

Paul's attempts to unravel the mystery take him to a psychiatrist's consulting room, a rendezvous in London's dockland, a hotel in Canterbury, and many other places before the denouement in a deserted mill and the Temples' elegant flat in London.