A man tries to avenge the death of his sister, a gambling addict. Another man, an ex-convict who whistles when he commits a crime, is reunited with his blind mother.

• Estudios San Miguel
• Ángel Magaña
• Renée Dumas
• Diana de Córdoba
• Pedro Fiorito
• Orestes Soriani
• Percival Murray
• Rosa Martín
• Arnoldo Chamot