chunk: A Frenchman named Marcelo Desonyers travels to Argentina in 1870, and he marries the elder daughter of Julio Madariaga, the owner of a ranch. Eventually Marcelo, his wife, and his children Julio and Chichi move back to France and live in a mansion in Paris. Julio turns out to be a spoiled, lazy young man who avoids commitments and flirts with a married woman named Marguerite Laurier.
  Meanwhile, Madariaga's younger daughter has married a German man named Karl Hartrott, and the Hartrotts move back to Germany. The Desnoyers family and the Hartrott family are thus set against each other with the onset of World War I. However, Julio Desnoyers initially shows no interest in the war, while Hartrott's family eagerly supports the German cause. It is only after Julio's lover, Marguerite, lavishes attention upon her husband after the latter is wounded in battle, that Julio is moved to participate in the war.