Tragedy at Beechcroft

Beechcroft is, of course, a country house. The permanent residents are Major Moncrieff and his wife Lavinia, their adopted twin nieces Dilly and Dolly, the twins' governess Ann Bladeshaw and assorted nannies, parlourmaids and discreet servants who Know Their Place, with the exception of an upstart and highly suspicious chauffeur called Evans.
What is going to happen in Beechcroft house is a tragedy and detective Pointer is here now to resolve the case.