Gerardo López del Castillo
El Negro
In a poor neighborhood in Mexico City, two gangs of kids fight for control of the center where they work as "boleros", musicians or announcers. "Completo" joins the gang led by "Rorro", a rival of the group headed by "Curricán".
Investigador (as Gerardo L. de Castillo)
Card-sharks blackmail a dissolute young man into participating in a big robbery; his brother takes the rap for him.
