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.

During blitz clearance work in 1942, a skeleton is found in a burial vault in a Baptist Chapel. The chapel had damaged in the air raids the year before. But the vault has been unused since 1934…