The life of a wine estate from 1914 to 1939. A remarkable destiny of a woman. The discovery of wine fairs between the two World Wars. Glamour: the European palaces and the chic atmosphere of the Riviera. Nothing predestined Léonie Marciac to manage the family wine estate in Bordeaux. However, everything changes with her husband's mobilization in August 1914. Visionary, skillful, and determined, Léonie proves to be a remarkable businesswoman and asserts her independence. From wine fairs to European palaces, from the sunny days of summer 1914 to those of 1939, we witness with Léonie the arrival of the Americans in Bordeaux, the development of automobiles and aviation, as well as the profound changes in the country. Flavors of oysters from the Arcachon Bay and bitter soup, passions and heartbreaks, youth and decline: great misfortunes and small joys alternate on the banks of the Gironde and by the sea.