 An apparently simple adultery case turns into an intricate and suspense-filled plot composed of numerous twists and turns, with a surprising ending. Dr. Rafidjian, a renowned physician, seeks out Dora Lobo s detective agency, wishing to locate call girl Ana Cíntia Lopes. The case soon finds its way into the hands of Remo Bellini and his new assistant Beatriz; but the client s brutal murder changes the course of the investigation, leading the two detectives into high-risk situations. Trying to solve the crime, they canvas the nightlife of São Paulo s underworld, where they meet Fátima, a mysterious prostitute who becomes involved with Bellini. Based on the book of the same title by the writer and musician Tony Bellotto, who is also the film s co-producer and co-composer of the soundtrack, along with Charles Gavin, fellow member of the rock band Titãs, and Andreas Kiesser, of Sepultura.