Alberto Bojórquez Patrón
Director
Carlos Grandjean
Set Decoration
Carmen Palomino
Makeup Artist
Rafael Ceballos
Editor
Américo Fernández
Assistant Director
Sara Maza
Hair Setup
Gustavo César Carrión
Music
Armando Solís
Production Manager
Rodolfo Solís
Sound
Jorge Stahl Jr.
Cinematography
Alberto Bojórquez Patrón
Writer
José de la Colina
Novel
Rocío Brambila
Patricia
Marissa Maynez
Mercedes
Mildred Hernández
Ana
Gregorio Casal
Asesino / Killer
Roberto Dumont
Professor Escalante
Enrique Novi
Guillermo
Juan José Martínez Casado
Mercedes' Father
Zaide Silvia Gutiérrez
Patricia's Friend
Lina Montes
Mother Superior
Cecilia Pezet
Murder Victim
Lilia Michel
Patricia's Mother
Miguel Inclán hijo
Hernando Name
Amparo Fustenberg
José Luis Caro
Thief
Fernando Pinkus
Pervert journalist
Edna Guerrero
José Luis Avendaño
Rubén Calderón
Pili González
Female student
Elizabeth Wallace
Ethel Carrillo
Alejandro Parodi
Journalist
