For the first time, Scotland Yard opens its secret files to bring you the authentic true stories of some of its most famous cases. The title comes from the emergency telephone number in use at the time, and the series was introduced by Chief Superintendent Davidson, curator of the Crime Museum – more commonly known as the Black Museum - at Scotland Yard, London, England.

Anthony deBrun is walking with his fiancée to visit a jewellery shop near Tottenham Court Road, London, to purchase an engagement ring. They have the great misfortune to walk in to a robbery in progress at the shop, and Anthony is shot dead…