San Martín's exile is crossed by the melancholic idea of ​​return. A return that will never materialize. Distance, absence, remoteness. Are these founding traits of the Argentine soul? The Father of the Country who finally leaves, for better and for worse, his distant children alone.

Film based on the life of Dr. Salvador Mazza, who, with a group of professionals, conducts an investigation to discover the antidote to a mysterious illness whose carrier is a nocturnal insect. A Mazza was regarded as the first doctor who fought the deadly Chagas disease in Argentina.