The series tells the story of a criminal investigation into the murder of businessman Paulo Gomes de Aguiar at the beginning of August. In the midst of the Vargas government crisis, the murder case is taken by police commissioner Alberto Mattos, an honest and incorruptible man who is not well regarded by his co-workers, as the place is totally turned over to corruption.

• José Mayer
• Vera Fischer
• Letícia Sabatella
• Lúcia Veríssimo
• Elias Gleizer
• Hugo Carvana
• Rodolfo Bottino
• Sérgio Mamberti