Brooklyn's Hasidic community of Lubavitchers is turned upside down when family tragedy strikes and everyday life changes forever for Zev Altshul. He is first placed into the care of the closed and close-knit community where he grew up, but soon realizes he can't stay. His saving grace is handball, his gift from God, and the one thing he can rely on as he is shuttled, chased, and abandoned by trusted elders, family, and friends. Even as Zev never fully escapes from the guilt of his choices, he sets course across the United States to discover where loyalty really lies and what it means.

Like most gentiles in Nazi-occupied Paris, architect Lucien Bernard has little empathy for the Jews. So when a wealthy industrialist offers him a large sum of money to devise secret hiding places for Jews, Lucien struggles with the choice of risking his life for a cause he doesn't really believe in. Ultimately he can't resist the challenge and begins designing expertly concealed hiding spaces - behind a painting, within a column, or inside a drainpipe - detecting possibilities invisible to the average eye. But when one of his clever hiding spaces fails and the immense suffering of Jews becomes incredibly personal, he can no longer deny reality.

When Matilda’s childhood sweetheart, Hans, is in danger, she doesn’t hesitate to hide him in her attic. Protecting him from her parents and the soldiers downstairs, she smuggles him food and communicates in whispers. For months, they exist by candlelight. But how long can they survive? 

Elliot Rosenzweig, a respected civic leader and philanthropist, is attending a fundraiser when he is suddenly accosted and accused of being a former Nazi SS officer named Otto Piatek, the Butcher of Zamosc. Although the charges are denounced as preposterous, his accuser is convinced he is right and engages attorney Catherine Lockhart to bring Rosenzweig to justice.

In a world filled with danger, heartbreak, and impossible choices, the blood sisters must navigate through the darkness to find love, redemption, and a chance at survival.