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.
Film based on the real case of the sinking of the cazatorpedera "La Rosales", Navy Argentina, occurred in 1892 on the coast of Uruguay. In that event only saved from death the captain and the officers, raising more suspicions.
