After the mysterious disappearance of an oil well owner, one of his workers, Gerardo assumes the business management. Soon, the owner's sister arrives from Argentina, and, believing that Gerardo killed her brother to keep the wells for himself, she starts working as a singer under a false name in the same casino her brother disappeared, in order to find out what exactly happened.
Gerardo Ramírez

Mercedes Irigoyen

Camelia

Heriberto

Demetrio García

Fabio

El Rayado

José Enrique Irigoyen

Nanette

Van Eckerman
Raquela Ortiz
Complice de Fabio (uncredited)
Complice de Fabio (uncredited)
Espectador casino (uncredited)
Empleado de Irigoyen (uncredited)
Cochero (uncredited)
Cantante abucheada (uncredited)