Oliverio lives in a building taken over by immigrants from the Mexican countryside who work constantly to provide the basic services lacking in the dwelling. Oliverio lives in a building taken over by immigrants from the Mexican countryside who work constantly to provide the basic services lacking in the dwelling. Oliverio lives in a building taken over by immigrants from the Mexican countryside who work constantly to provide the basic services lacking in the dwelling. Oliverio lives in a building taken over by immigrants from the Mexican countryside who work constantly to provide the basic services lacking in the dwelling.