An elderly woman has secluded herself in her remote home in the French countryside, when a young foreign couple on vacation suddenly intrudes on her isolated life.

Little Ida's mother is working for the Germans during WW2, and she is also having a relationship with a German SS-officer. Ida is experiencing the problems of having a mother who is involved with the enemy, without being old enough to understand what is actually going on.

One day fourteen-year-old Sophie Amundsen comes home from school to find in her mailbox two notes, with one question on each: "Who are you? and "Where does the world come from?