"An industrialist's son becomes part of the communist party."
Alfonso De Grazia
as Atilio Roca
Julia Sandoval
as Julia
Teresa Blasco
as Amanda
Julio De Grazia
as Hermano de Amanda
Pedro Laxalt
as Carmelo Roca
Carlos Cores
as Agustín García Casas
Osvaldo Terranova
as Don Pedro
Alberto Bello
as Comisario
Homero Cárpena
as Instructor
Josefa Goldar
as Sra. Roca
Claudio Martino
as Mauricio
Aldo Mayo
as Bertis
Héctor Gióvine
as Armando
Emilio Vieyra
Director
Abel Santacruz
Writer
Astor Piazzolla
Music
Julio C. Lavera
Cinematography
José Cardella
Editor
Óscar Esparza
Óscar Lagomarsino
Production Design
Aníbal Di Salvo
Camera Operator
Electrician
Ricardo Becher
Second Unit Director
Jorge N. Mobaied
