The film tries to capture the "nervous epidemic" caused by war and misery which "drives people mad". This unique portrait of the life in 1919 Germany, filmed on location in Munich, describes the cases of different people from all levels of society: Factory owner Roloff, who looses his mind in view of catastrophies and social disturbances; teacher John, who is the hero of the masses; and Marja who turns into a radical revolutionary.
Part of the artificial-creature series encompassing Der Golem (1914 and 1920), Alraune (1918, 1928, 1930) and Metropolis (1926), 'Homunculus' was the most popular serial in Germany during World War I even influencing the dress of fashionable Berlin. Foenss, a Danish star, is the perfect creature manufactured in a laboratory by Kuehne. Having discovered his origins, that he has no 'soul' and is incapable of love, he revenges himself on mankind, instigating revolutions and becoming a monstrous but beautiful tyrant, relentlessly pursued by his creator-father who seeks to rectify his mistake.
