A surgeon transplants the heart of an ape into his ailing son with horrific results.
José Elías Moreno
Dr. Krallman
Carlos López Moctezuma
Goyo
Armando Silvestre
Lt. Arturo Martinez
Norma Lazareno
Lucy Ossorio
Agustín Martínez Solares
Julio Krallman
Gerardo Zepeda
Monstruo
Noelia Noel
Redhead victim
Gina Morett
Woman in Shower
