Based on a crime book by Italian authors Carlo Fruttero and Franco Lucentini, first published in 1972. The story is set in the city of Turin, and deals with the investigation of commissioner Santamaria about the murder of an architect of dubious fame, Garrone. Among the protagonists are Anna Carla Dosio, a beautiful and rich woman, and her friend Massimo Campi, a rich homosexual.

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