Even as a boy in bombed-out Berlin, Fritz Knobel discovered how to do good business with the gullible and gullible: He sells his customers genuine "Führer" memorabilia that he has actually fabricated himself. As an adult, Fritz finally poses as the art and antiques dealer "Professor Dr. Knobel" and works on forgeries of all kinds, but without being able to capitalize on them. When Knobel meets Hermann Willié, a cash-strapped reporter for the magazine "HH-Press", at a "comradeship evening", fate takes its course - Knobel has just produced a secret "Diary of the Führer". Willié senses a global sensation and opens the money taps at his publishing house, while Knobel works hard to produce his magnum opus. When the "Hitler Diaries" are presented to an astonished public, Willié sees himself at the peak of his career. But not for long.
—Arte