Bellini and the Sphinx (2001)

Doctor Rafidjian turns to Dora Lobo's investigation agency to locate prostitute Ana Cintia. The case is in charge of Bellini and Beatriz, his new assistant. But the doctor is brutally murdered and the detectives infiltrate the night underworld of São Paulo in search of an answer, where they meet Fatima, a mysterious prostitute who gets involved with Bellini.