André is a young doctor who, after spending a year working in Africa, discovers that he has been exchanging letters not with his long-time girlfriend, but with someone very close to her.

During an attempted robbery, the daughter of the lawyer Carla's is shot and in serious condition. With no answers, Carla tries to move on with her life by seeking help from support groups. Unable to accept his daughter's fate and the lack of solutions on the part of the police, he transforms the search for justice into a search for revenge and tests his own limit to see how far he could go.

Regina, a lonely 65 year old who works on the neighborhood watch for the police in Copacabana, believes to have witnessed a murder in the building across the street, and ends up getting involved with the suspect in a potentially dangerous chain of events that will force her to take stock of her life.