An avenue crossing that is, at the same time, the border between the city of Buenos Aires and Greater Buenos Aires. Every day, thousand s of people cross it on their way to work. Buses, traffic lights, asphalt, concrete, a rusty sign. A person going to study, another one selling pancakes; public lighting electoral propaganda; cell phone ads and hamburgers. The image of normalcy. “Every document of civilization is, at the same time, a document of barbarism,” Walter Benjamin said after looking at the capitalist catastrophe against the grain. Reality is a common grave; this film, a digging process. Or the dissection of the landscape where, ten years ago, the definitive trail of a teenager was lost in the hands of the police.