Jessica Lange is very good as Ann Talbot, a lawyer who takes up the task of defending her father (Armin Mueller-Stahl) against charges of Nazi war crimes. The charges are ridiculous to her at first, but she slowly begins to realize they might be true. Lukas Haas, giving an exceptionally bright-eyed and intelligent performance, plays Ann's 12-year-old son, who believes unquestioningly that his beloved grandfather is innocent.
Roger Ebert wrote that the father, while very well-played by Mueller-Stahl, does not devote enough time to helping us to understand his character, but I don't know that any film could do that for such a person. Mueller-Stahl and the script at least offer suggestions and let our imaginations do the rest.
I found this film, scripted by Joe Eszterhas and directed by Costa-Gavras, to be a quietly effective courtroom thriller (even though the idea of a lawyer defending her own father in this situation requires a high suspension of disbelief) and found the central drama of a woman discovering her father is, or at least was, a monster to be moving.