It is January 1946, and following General Karl von Werstein's exoneration in Nuremberg, he spends his first night together with Helen and their baby son as a family. Their future looks bleak, and they struggle to find a place to live in the aftermath of a war that has destroyed millions of lives, and made them citizens of nowhere.

Karl is offered work and a home for the family in the city of Bonn, where Helen can continue her medical studies. They soon get caught up in the webs of intrigue and shifting loyalties that define post-war divided Germany. Karl is tasked with a mission that threatens his life.

As she seeks to protect her family and bring her husband's Prussian family to safety, Helen must find the courage and ingenuity to navigate prejudice and betrayal, pushing her love for Karl to the limit.