In the area around the Avenida Buenos Aires in La Paz, and in the centre of El Alto, wander sad, subdued, lonely people; lost in the gloom of another night like so many others. The night is dense and heavy, yet, generous with fleeting encounters, it offers an anonymity that daylight withholds. It also brings with it its own bustle; almost always charged with the yearning  for escape and the nostalgia of those for whom nights like this are not exceptional, but rather make up their everyday reality.