In a Victorian mystery Scotland Yard's Inspector Pitt and his wife investigate a series of grave-robbings that bring them time and time again to the elegant street of Gadstone Park.
When William Weems, obscure moneylender, is murdered Ispector Pitt is asked to investigate and discovers Weems was a vicious blackmailer who had a list of some of London's most distinguished gentlemen in his office.
Bow Street Superintendent Thomas Pitt is called to the scene when one of London's back alley prostitutes is found murdered and there is evidence left at the scene implicating the son of a wealthy, powerful gentleman.