Thieves break into a scientist's laboratory to steal a secret formula, and in the process they kill his daughter. Enraged, he develops a formula that will turn an extremely ugly woman into a spectacular beauty, and then uses the woman to take his revenge on those responsible for his daughter's murder.

• Internacional Cinematográfica
• Lilia del Valle
• Ramón Gay
• Julio Villarreal
• Charles Rooner
• Fernando Wagner
• Luis Aceves Castañeda
• José René Ruiz 'Tun-Tun'
• Ángel Di Stefani