Blauäugig (1989)

In this suspense story, the main character, Johann Neudorff, immigrated to Argentina from Germany after World War Two, and has become a successful businessman there. He is unconcerned with the nature of the government there, which at the time of this film (1978) is a military dictatorship. His comfortable existence is disrupted when he discovers that his beloved daughter Laura has become the lover of a political activist who is on the military's hit list. When his daughter is kidnapped, Johann attempts to use his government connections to free both her and her lover. However, his son Alfredo undermines his efforts, and Johann himself is incarcerated in a military prison, but not before he discovers that his daughter and her lover are both dead, killed by the regime.