December 1917. Ada Hobbes has cleaned for Dr Tindall for many years and begins this frosty morning like any other day. But it turns out the house is not empty after all. The blood-covered George Tindall is sprawled across the floor. Detective Inspector Harvey Marmion and Sergeant Joe Keedy arrive to a horrific scene. Someone enjoyed killing Tindall, without a doubt. Their investigation takes them out of London, and on the trail of three different women as it emerges that Dr Tindall was not the respectable local GP after all, but a bigamist whose third wife had some very interesting connections in the crime fraternity.