After Midnight by Irmgard Keun

Arrested in Cologne for remarking that the Fuhrer looked sweaty, nineteen-year-old Sanna has fled to Frankfurt. But her troubles are far from over. Her best friend Gerti has fallen for a Jewish boy, her brother writes books that have been blacklisted, and her own aunt could turn her in to the authorities at any moment. Darkly humorous and utterly heart rending, this gripping novel vividly captures the terror and hysteria of pre-war Nazi Germany.