Chief of Police Rui, a happily married man of principles, is in charge of investigating Joana, a teacher who's accused of political crimes. After some false starts, he manages to arrest her, but is startled to learn that she's also a nun. The revelation doesn't alter the natural course of events: he must torture her in order to obtain a confession, and gets increasingly attracted to her.
In "Solo de Violino", bank clerk and aspirant violinist Rodrigo is a serial killer. When his next door neighbor reveals that she is in love with his music and Rodrigo, he has difficulties in controlling his killing impulses. In "A Guerra da Malvina", four female thieves break in the house of the porn star David Cardoso to rob money and jewelry, but they end having sex with the actor.