In 1968, at the height of the military dictatorship, Claudio Kahns closely followed the political and historical events that mobilized the city of São Paulo. Among them was the death of high school student José Guimarães, murdered during the clashes of the Battle of Maria Antônia, an episode that profoundly marked the Brazilian student movement. Sensitive to the moment and aware of the historical gravity of those days, Claudio took his Super 8 camera to one of the main demonstrations held in protest against the student's death. The result is an impressive record of the city in turmoil: streets filled with students, posters, slogans, and the latent tension of a country living under repression.