The true story of a promise that is stronger than hate and forgetfulness: The number that Albrecht Weinberg still bears on his forearm at 98 years old has faded over the decades. In contrast, his memories are crystal clear. He recalls his youth, the rise of the Nazis, friends who suddenly were no longer friends, and how he lost his family. And he remembers Friedel. His sister, to whom he made the promise that they would both survive. Together, they escape the Holocaust and emigrate to the USA. Decades later, when Friedel's health declines, the two travel back to Germany. There, Albrecht accompanies his sister until her death, but he also meets her caregiver, Gerda. For the first time, Albrecht opens up and begins to share his life story with Gerda. He tells her about his past and the promise to survive. So that the memory lives on. Includes photo section.