Life at a middle-class neighbourhood in present day Recife, Brazil, takes an unexpected turn after the coming of a different security firm that is private. These men's existence brings a feeling of safety and also a fantastic deal of anxiety . Meanwhile, the Bia, married and mother of 2, must find a means to deal with the barking and howling of the dog of her neighbour. A piece of'Braziliana'on violence, history and noise.