After a proper young lady shoves her lecherous guardian off a cliff, she is psychoanalyzed by Sigmund Freud and investigated by Sherlock Holmes. Is Emily a victim, a murderess, a spy, or a latent lesbian? The Case of Emily V., Keith Oatley's period whydunit, draws intriguing parallels between shrink and sleuth both deduce hidden character from subtle clues and deepens Victorian melodrama with murky neuroses: ''[D]amnable nonsense, which I profoundly resent,'' yelps Holmes when Freud diagnoses his narcissism and father issues. A pitch-perfect pastiche of Arthur Conan Doyle's stories and Freud's case studies, but a bit too clinical to be emotionally compelling.

