A chemistry teacher decides to take matters into her own hands when her brother is murdered and the police cannot help her.
Joaquín García Vargas | David Reynoso | Eric del Castillo | Alfonso Zayas Jr. | Agustín Bernal | Pedro Infante Jr. | Paco Sañudo | María Cardinal | Alejandro Suárez | Rosa Gloria Chagoyán | José René Ruiz | Guillermo de Alvarado 'Condorito' | Rolando Fernández