A black comedy set in the Swinging Sixties (1963-4) and revealed through the diaries of a doctor – 35 years old and still a virgin – whose curious obsessions drive him to start murdering his patients.Doctor Kristal is picky, pedantic and super-sure he's right – though he doesn't see himself that way. In his consulting room he regards most patients with contempt, and on his lonely walks through the graveyard he muses on life and death. In the pub his only friend, a doctor approaching retirement, tries to sell Kristal his practice and to interest him in a young female doctor across town. Kristal, though, is becoming obsessed with two attractive patients. Sexy young Jane Quinney, who he has helped before, has found herself pregnant and wants his help again, while the alluring Eleanor, unhappily married to an older man (an overweening actor) asks if there is any way to slow her husband's voracious sexual appetite.Kristal thinks himself immune from any hint of sexual passion – but they are beautiful woman, desperate for his help. Isn't there anything he can do?