Watch Cineb. In the fall of 1945, nineteen year-old Mark Niebuhr, is accused of murder and is jailed as a prisoner of war in Warsaw, Poland. He maintains his claim of innocence throughout long periods of solitary confinement. When Mark is placed among a group of Polish criminals, he becomes the target of their aggression. Later, Mark experiences true hell in a communal cell with fanatical German war criminals. Turning Point is based on actual events from Hermann Kant's novel of the same name.