Crime novelist and detective Paul Temple made his first appearance on BBC Radio in 1938. He 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 Temple’s help with his latest tricky case.The radio serials proved so popular that Francis Durbridge was inspired to write a succession of novels featuring Paul Temple. This one, read by 'Buffy' and 'Little Britain' star Anthony Head, sees the smooth sleuth involved in danger and international espionage.Paul Temple meets Iris Archer at a cocktail party, and agrees to write a play for the vivacious actress. So he is most surprised when she suddenly decides to pull out of the lead role days before the play is due to open. He is even more surprised when he glimpses her in the Scottish hotel where the Temples are holidaying – after she had told him that she was going to the South of France.Does her sudden appearance have anything to do with the mysterious letter passed to Paul Temple by an excitable young man, with explicit instructions to deliver it to John Richmond? What does the enigmatic Doctor Steiner have to do with events? And, most importantly, who is operating under the codename Z4? It is up to Paul Temple to find out...Anthony Head brings the great radio detective to life in this new reading of Francis Durbridge’s classic novel.