BERLIN 2019. A young writer is brutally attacked in her home and left for dead. For her sister Nina Bergmann, it's the beginning of a nightmare that will threaten to destroy her marriage, her job and - ultimately - her life. As she sets out to unravel the truth about what really happened to her sister, Nina comes face-to-face with inner demons she believed long since banished and discovers that her sister's past and that of the once-divided city are intertwined in unimaginable ways. The Wall may be gone, but its legacy still haunts Berlin . . .