Dirceu, 30 years old, has origins that go back to the aristocracy of Northeast Brazilian backlands. Settled in a kind of subjective amnesia, Dirceu tries to bury his family's past. He is a demolition man in Recife, an urban landscape undergoing an uncontrolled process of transformation. Maria shares the same country origins, but she uses the city for a different purpose. She is a carefree and joyful music student. If Dirceu aspires to a world that is stable and present, Maria lives in discord with the present. To her, nothing is as it should be. Maria's apparition unleashes in Dirceu an urge for being somebody else. On a route of escape through the desert of the backlands, a unique encounter is set to happen. Boa sorte, meu amor (Good luck, sweetheart) is an anti-romance of the impact between music and silence.
After a bloody invasion of the BOPE in the High-Security Penitentiary Bangu 1 in Rio de Janeiro to control a rebellion of interns, the Lieutenant-Colonel Roberto Nascimento and the second in command Captain André Matias are accused by the Human Right Aids member Diogo Fraga of execution of prisoners. Matias is transferred to the corrupted Military Police and Nascimento is exonerated from the BOPE by the Governor.