Hans Fallada (1893–1947) was the pen name of German author Rudolf Ditzen, whose books were international bestsellers on a par with those of his countrymen Thomas Mann and Hermann Hesse. He opted to stay in Germany when the Nazis came to power, and eventually had a nervous breakdown when he was put under pressure to write anti-Semitic books. He was cast into a Nazi insane asylum, where he secretly wrote The Drinker. Immediately after the war he wrote his last two novels, The Nightmare and Alone in Berlin, but he died before either book could be published.