During WWII (1939-1945), 16-year-old German Jewish born Marga Grünberg lives in the city of Amsterdam pretending to work for the nazi war machine while secretly risking her life fighting the brutal regime. With a fake identity card this brave teenager takes chances that would unnerve any adult. When renting the second floor from a fiercely nazi-loving German landlady, every word exchanged needs to be carefully weighed before spoken. For the duration of the war, Marga is faced with decisions no teenager should ever have to make. Guided by keen instinct, nerve and courage, she risks her own life in order to save the lives of family members, friends and total strangers. This is a true story.