The film capture the sound of a containment work at former quarry, and use the material to perform a composition of images and noises. The iris resource used in editing produced an isolation effect between four realities in the containment work. The four series functions as phrases that add up inside a musical composition. Each sentence is added to the previous one, which in turn continues played in loop, becoming background. It forms a structure similar to certain minimalist compositions. From this edition, Fernando and André realized a composition with the stone crusher noise. The junction of the elements engendered a truly serialist work, composed of different parallel modes, where sound and image are one.