A neurosurgeon relates to his students in medical school a story about an affair he had with a married woman and how after the affair was over, the woman fell out a window and died. The surgeon, suspecting that she was murdered, set out to find her killer — but, instead of turning the suspect over to the police, he planned to take his own revenge on the murderer.
Alternative titles: The Upturned Glass | Cual copa de cristal | Abgründe | Vergelding | La vengeance du docteur Joyce | Taça de Amargura | Dokonalý zločin | Lægens kærlighed | Omantunnon tuomio | Eglima kai megalofyia | Εγκλημα και μεγαλοφυΐα | A pohár kicsordul | Persecuzione | 霧の夜の戦慄（1947） | Hvorfor drepte dr. Joyce | Pecado Mortal | Paharul rasturnat | Опрокинутый сосуд | Livet i mina händer