The case histories of turn-of-the-century sexual deviance, drawn from the pages of Richard von Krafft-Ebing's notorious medical text. A sexually repressed man discovers an unhealthy appetite for blood; a homosexual man submits himself to a doctor who promises to 'cure' his condition; and a masochist hires a pair of corseted prostitutes to enact a most peculiar performance. In the final chapter, a woman who has spent her life suppressing her lesbian desires is hired to tutor a sexually curious young woman. An ambitious doctor not only studies the patients, but uses them as pawns and playthings.