Leaving of the happened events with the kidnapping of the 43 students of the normal rural school of Ayotzinapa, with the participation of the organized delinquency and complicity of local authorities, the Mexican society has reacted with a lot of pain and anger. The painter Sandra del Pilar prepared an exhibition of painting and installation, inside the idea of post conceptual panting, with an original expression of painting in third dimension, introducing figures denominated by the own artist as paint bags, to express in that way the pain and indignation of the society. The work is a registration of the painter's artistic process, by way of documentary.