Percy Pratt finds himself having to defend Miss Serena Southerlyn, a former member of the Crown Prosecution Service, when she is accused of murdering her civil partner, Miss Roberta Mortimer. He discovers that his case will be tried at The Old Bailey. Percy hires Mr. FitzGeorge Wander, a private enquiry agent, to try and ferret out any useful information that could help his case and during his investigations uncover whether Miss Mortimer might have...