Using her telepathic powers, Leigh, an American doctor, helps Steven, her British lover, track down the psychopathic killer who has formed some sort of mind link with Steven

In the dynamic and dangerous Vienna of 1903, a brilliant psychoanalyst and a brave detective battle to catch criminals who commit the most clever and brutal crimes. Detective Inspector Oskar Reinhardt finds that young women are being slain in an unnerving—and ingenious—manner, with a small, almost undetectable, hat pin. For Dr. Max Liebermann, the killer is unique in the annals of psychopathology, one who murders in the midst of consensual love. Is the culprit a patient, one who swears he has a double, a shadow figure that is far more forward (in fact, indecent) with women? As danger mounts, Liebermann must find the answer while struggling with his own forbidden desire for a female patient.

A sexual predator is at large on the streets of Imperial Vienna. The killer is no ordinary 'lust murderer' but an entirely new phenomenon, his deviance revealing the darker preoccupations of the age. Detective Inspector Oskar Rheinhardt appeals to his friend, psychoanalyst Dr Max Liebermann, for assistance.

"A sexual predator is at large on the streets of Imperial Vienna and Detective Inspector Oskar Rheinhardt appeals to his friend, psychoanalyst Dr. Max Liebermann, for assistance. Early signs indicate that the killer is no ordinary 'lust murderer' but an entirely new phenomenon, his particular deviance revealing the darker preoccupations of the age. To understand his behaviour, Liebermann must employ the latest developments in psychoanalysis and make a journey into uncharted regions of the human mind. Alongside the unfolding of this disturbing case, Liebermann must treat his own patients, including a man who claims to have seen his double - the doppelgänger of Germanic folklore - an experience believed to be an omen of death. As Liebermann discovers more about this seemingly harmless man, he becomes convinced that his hallucinations are caused by a traumatic memory, buried deep in his unconscious. Could a mysterious dream hold the key? As the investigations proceed, Liebermann and Rheinhardt find themselves drawn into the worlds of art and couture, worlds in which glamorous appearances mask the most sinister secrets"--Back cover.