Germany, 1943: 26-year-old Rosa Sauer's parents are gone, and her husband Gregor is far away, fighting on the front lines. Impoverished and alone, she makes the fateful decision to leave war-torn Berlin to live with her in-laws in the countryside, thinking she'll find refuge there. But one morning, the SS come to tell her she has been conscripted to be one of Hitler's tasters.