September 1918. The First World War comes to an end but nobody knows it yet. Among the grape harvesters working on the Castelviel estate in the south of France are several refugees from the North, who were driven from their homes by the war. They are Father Larcher and his two daughters, Martha and Mary. There is also Pierre Bertin, a soldier on convalescent leave. And two escaped German prisoners, Wilfried and Fritz, who pretend to be Belgian and threaten the tranquility of this already well-endowed family.