Someone is trying to kill Sally Gilmartin. It is the summer of 1976, and the only person she can trust is her daughter, Ruth, a young single mother struggling with her own demons. Now Sally must tell her daughter the truth: She is actually Eva Delectorskaya, a Russian émigré recruited for the British Secret Service in 1939. Soon Ruth is drawn deeper into the astonishing events of her mother’s past, including her work in New York City manipulating the press in order to shift public sentiment toward U.S. involvement in Second World War and her dangerous love affair with another spy. Ruth also discovers that her mother has one final assignment. This time, though, Eva can’t do it alone—she needs Ruth’s help.