A serial in six episodes written for television by Edward Boyd from a synopsis by Len Fincham and Laurie Wyman.
[Starring] Geraldine McEwan and Jack Watling with Dennis Price

Ken Martin, well-known radio personality, and his wife, Kay, are told by a neighbour-Mrs. Curzon-that her flat has been burgled. The Martins go to investigate, leaving Mrs. Curzon alone in their sitting-room where she hides some diamonds. On returning home Ken and Kay discover that Mrs. Curzon has been strangled. They take the body to the flat next door and call the police, only to find everything in order. Kay and Kenneth force their way into Mrs. Curzon's flat again, and Ken is coshed. His assailant escapes.
Kay decides that the criminal must be Cecil Davenport -a poet who lives opposite. When he leaves his flat the Martins follow and although waylaid by another neighbour - the garrulous Mr. Dingle - they catch up with the poet at a sordid club. Davenport has them detained, convinced that they are dope pedlars, and they are once again faced with an irate Inspector Johnston. On returning home they find their flat has been completely ransacked.