Berlin, 1989. Siblings Rune and Lotte are shaken awake by Mama and told to follow her quietly into the night. Last time they snuck away from Papa, with Mama bruised and broken, they were back within a week. But this time they are starting a new life, Mama says--where nobody can ever hurt them again.

Ten years later, the memories of their escape are blurry; Mama is long gone and the siblings are back at Papa's house. But when they receive a mysterious notebook that seems to have come from Mama, Papa tears it apart. Could there be more to their past than they've been led to believe?

With Rune paralysed by fear, Lotte takes their fate into her own hands. When she learns about the 'Puzzle Women' working tirelessly to reconstruct files shredded by the former secret police, she begs them to help her piece Mama's story back together. But as Papa's threats against both siblings escalate, can they unite to learn the full, brutal truth in Mama's own words at last?