The former expert in fireworks, José Clementino gets a job as a bricklayer in the construction of a magnificent shopping center, one of the many works carried out by the construction engineer, César Toledo. During the feast of the ridge, where engineers and workers gather to celebrate the laying of the slab work, Clementino's wife flirts with several men. At one point, when he gives for the missing woman, Mason goes looking for her and is in a far corner of the building having sex with two men. Overcome with rage, Clementino kills his wife and one of the men paddle strokes. The family hears the screams and Toledo contains Clementino, with the help of a group of workers. Shocked by the violence of the employee, the employer called the police, and even later, an indictment against him at trial. His testimony is crucial to the conviction of Clementino, to discover their terrible crimes and audacious, which is a court suspicious.