Desc: Sexo, Sua Única Arma: Directed by Geraldo Vietri. With Selma Egrei, Ewerton de Castro, Arlete Montenegro, Serafim Gonzalez. In the interior of São Paulo, an apparently normal family hides unexpected secrets. One of the members makes sex her only weapon to get what she wants in this plot full of revenge, prejudice and contestation of values.