A blind child, Marie-Laure lives with her father in Paris near the Museum of Natural History, where he works as the master of its thousands of locks. When the Nazis occupy Paris and father and daughter flee to the walled citadel of Saint-Malo. In a mining town in Germany, the orphan Werner grows up enchanted by a crude radio he's found. His talent with these crucial instruments will eventually bring Werner to Saint-Malo, where their stories converge.
