Sir Graham Forbes of Scotland Yard often calls upon Paul Temple to help with his latest unfathomable case...

In a small country lane, the well-known American, Myron Harwood, is found dead. The murder heralds the start of a spate of celebrity deaths - and each time the victim is found with a small white piece of cardboard, bearing the inscription 'The Marquis'.

When a woman is pulled from the river with the same note attached to her dress, Paul Temple sends a note to Sir Graham Forbes. His message reads: 'is it true what they say about Rita?' Rita Cartwright was a private detective hired to investigate the Marquis murders - and now she is the eighth victim. The police are baffled and the Home Secretary is calling for Paul Temple to intervene...