
A terrible disease is found in a Mexican town. A doctor tries to alert the authorities when he discovers its epidemic nature. No one listen to him and soon after the disease spreads. The government tries to control the information in order to prevent panic.

Alejandro Parodi
Dr. Pedro Sierra Genovés

José Carlos Ruiz
Dr. Jorge Martínez Abasolo

Rebeca Silva
Eva Aponte

Tito Junco
President

Ignacio Retes
Dr. Mario Zermeño

Eduardo Alcaraz
Dr. Luis Mario Zavala

Héctor Godoy
Luis Armando Torreros
Humberto Elizondo
R. C. Jiménez, journalist

Leonor Llausás
Widow of Alvarado
Zully Keith
Magdalena, Dr. Sierra Genovés' wife

Nora Lárraga 'Karla'
Health Inspector

Arlette Pacheco
Journalist
María Barber
President's Wife

Daniela Romo
Laura
Carlos Fernández
Bernardo Budillo

Ramón Menéndez
Dr. Miguel Garzón Riera

Martin LaSalle
Diplomatic
Roberto Dumont
Dr. Arcadio Rincón Núñez
Francisco Llopis
Eva's Father
Manuel Zozaya
Dr. Everardo Morell
Felipe Cazals
José Agustín, Gabriel García Márquez, Juan Arturo Brennan
Released