Stefan (Tom Wlaschiha) journeys from Berlin to San Francisco to investigate his father's scientific suppositions about the induced sheep virus and its effects of the convicts in whom it was infused. He meets with some disdain and resistance to a dead theory, but also encounters some folks who know of the theory and support his investigation. Simultaneously with his visit a series of serial murders takes place, each victim killed in a similar manner and each murder apparently accompanied by strains of music from Puccini's opera 'Turandot' which just happens to be opening at the San Francisco Opera. A police investigator Louise Tolliver (Irit Levi) and her companion cop (Kalene Parker) follow the murders while Stefan makes the rounds of the sex clubs and bars in San Francisco trying to locate men who may have been guinea pigs for his father's theory. He encounters a strange lad Jeffrey (Jim Thalman) with whom he has a cat and mouse attraction and a prominent Doctor Burroughs (Richard Conti) who seems oddly involved in the cast of suspects. How this all come to an end is the play of the film, a story as much about the search for self identity between Stefan and Jeffery as it is a case for investigation of murders.