When they were younger, a pair of beautiful sisters were forced to watch a bunch of thugs brutally kill their parents. Not bad enough? Well, OK then, they were also savagely raped. Now someone's going around slashing people up. Has one or both of the sisters lost it? A couple of police detectives try to find out.

• Jorge Reynoso
• Patricia Rivera
• Pedro Infante Jr.
• Diana Ferreti
• Alfonso Munguía
• Víctor Lozoya
• Rodrigo Vidal