During the Second World War, a young girl survives hidden in a hole inside a Nazi lager. Years later, thanks to her mother’s memories, she understands the sense of that experience.
Susanne’s parents are deported to build a military road for the Nazis. Despite the cruel controls, they manage to keep their girl with them, hiding her in a hole inside the barrack. Susanne spends a lot of time alone in the dark, but her fantasy invents a friend, a mouse prince who fights against the bad ogres (the fanatic SS) on her behalf.