Tuberculosis and a passional crime prevent the final triumph to a boy from the slums who has opened his way in boxing.
Armando Bó
Laura Hidalgo
Santiago Arrieta
Marcos Caplán
Augusto Codecá
Pedro Laxalt
José Carlos Marrone
Semillita
Zita Rosas
Mauro Cía
Alfredo Porcio
José María Gatica
Juan Carlos Prevende
Américo Fernández
Alfredo Marino