On her deathbed, a mother tells her daughter of a specific street address in Heidelberg, Germany, where the family lived before immigrating to New York during World War II. The information comes as a surprise to the daughter, now in her forties, for whom much of her childhood in Germany is a mysterious pastiche of memories that her mother has never been willing to discuss. Of her past, she knows only that her father was killed in the early years of the war while fighting for the Third Reich. But she senses that there is something about this address—on a street called Kronenstrasse—that can tell her more. Her decision to return leads her to a shocking discovery.