A World War II satire that follows a lonely German boy whose world view is turned upside down when he discovers his single mother is hiding a young Jewish girl in their attic. Aided only by his idiotic imaginary friend, Adolf Hitler, Jojo must confront his blind nationalism.

Liesel Landauer and her friend Hana are linked by a lifelong relationship and an exceptional house built by the architect Von Abt for Liesel and her husband Viktor in Czechoslovakia in the early 1930s.