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.

• Películas Anahuac S.A.
• Jorge Negrete
• Libertad Lamarque
• Meche Barba
• Agustín Isunza
• Julio Villarreal
• José Baviera
• Alfonso Bedoya
• Francisco Jambrina