Sisters Vera and Marya were brought up as good Soviets: obedient despite hardships of poverty and tragedy, committed to communist ideals, and loyal to Stalin. Several years after fighting on the Eastern front, both women find themselves deep in the mire of conflicts shaping a new world order in 1947 Berlin. When Marya, an interpreter, gets entangled in Vera’s cryptic web of deceit and betrayal, she must make desperate choices to survive—and protect those she loves.

Nine years later, Marya is a prisoner in a Siberian work camp when Vera, a doyenne of the KGB, has cause to reopen her case file and investigate the facts behind her sister's conviction all those years ago in Berlin. As Vera retraces the steps that brought them both to that pivotal moment in 1947, she unravels unexpected truths and discoveries that call into question the very history the Soviets were working hard to cover up.