Lady Betty Calder is a prostitute and a blackmailer - or is it her sister, Glynis, using her name? Dr David Garth, her fiance, knows he must find out the truth - especially when he blunders across Glynis' strangled body on Betty's property.
The police know she did it, but David knows she didn't, and he must outwit a cunning murderer and a hostile detective-inspector to prove it. What he discovers - about his best friend's wife, his medical assistant, and even his fiancee - make him wish the blackmailing Glynis had never lived.
'John Dickson Carr's flair for the impossible crime shows through at its very best in this historical puzzler' The Times
The police know she did it, but David knows she didn't, and he must outwit a cunning murderer and a hostile detective-inspector to prove it. What he discovers - about his best friend's wife, his medical assistant, and even his fiancee - make him wish the blackmailing Glynis had never lived.
'John Dickson Carr's flair for the impossible crime shows through at its very best in this historical puzzler' The Times
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