This film is based on a daring payroll robbery that took place in Buenos Aires on 29 August 1963. A group of right-wing guerrillas hijacked an ambulance and used it to raid the payroll office of a large hospital. Total take was about US$100,000, a huge amount for the time. The film's main character is a principal operative in this caper and others; he's a lost soul who worships Hitler. Opposite him is Mirtha Legrand, neglected housewife of a wealthy landowner. She falls for him even as she rejects his tendency to violence. Alfredo Alcon smolders in the starring role. He burns with a misplaced but believable ire. The film is badly acted at times by the supporting cast, but the romance is believable and it builds to a tense climax. The allegory here is of the politics of Juan Peron; the screenplay is by noted anti-Peronist authors. The film rather courageously delves into the darker aspects of Argentine politics of that time, weighing the worth of commitments that lead to violence. Music is by a young Astor Piazzola.