Amsterdam, 1941 . When the Nazis invade Amsterdam, singer Johanna Vos watches in horror as the vibrant music scene she loves is all but erased, her Jewish friends forbidden from performing with her onstage. Alongside her friend Jakob, Johanna helps organize the Artists’ Resistance, an underground network allowing Jews to perform at house concerts hosted by their allies. When Johanna hears of a Jewish orphan headed for deportation, she does not think twice. She takes the baby in as her own, hiding the truth from even her own sister, Liesbeth.     Meanwhile, Liesbeth finds herself in a dilemma, as she knows of her sister’s staunch support for the Resistance, but her husband supports the Nazis. When a charming member of the Dutch Fascist Party sets his eyes on her, her predicament only deepens. As secrets continue to grow between the sisters, severing their once-unbreakable bond, they are both forced to make choices that will alter their lives forever.