Snobbery With Violence

When a marriage proposal appears imminent for the beautiful-if rebellious-Lady Rose Summer, her father wants to know if her suitor's intentions are honorable. He calls on Captain Harry Cathcart, the impoverished younger son of a baron, to do some intelligence work on the would-be fiancé Sir Geoffrey Blandon. But when Harry is caught between his client's desire for discretion and his suspicion that murder may have been committed, he enlists the help of Superintendent Kerridge of the Scotland Yard and Lady Rose herself.