Using the interrogation of a US counterinsurgency agent as a backdrop, the film explores the consequences of the struggle between Uruguay's government and the leftist Tupamaro guerrillas.

Yves Montand
as Philip Michael Santore

Renato Salvatori
as Captain Lopez

O.E. Hasse
as Carlos Ducas

Jacques Weber
as Hugo

Jean-Luc Bideau
as Este

Maurice Teynac
as Minister of Internal Security

Yvette Etiévant
as Woman Senator

Gloria Laso
as Rafaela

Harald Wolff
as Minister of Foreign Affairs

Evangeline Peterson
as Mrs. Santore