An inexperienced U-boat crew has to survive a secret mission and a young German woman is torn between loyalty for her home country and the French resistance in the WWII drama.

Mifti, age 16, lives in Berlin with a cast of characters including her half-siblings; their rich, self-involved father; and her junkie friend Ophelia. As she mourns her recently deceased mother, she begins to develop an obsession with Alice, an enigmatic, and much older, white-collar criminal.