A tale based on the story of Ethel and Julius Rosenberg, the only Americans put to death for espionage during the Cold War, traces the experiences of their friend and neighbor, who takes in the couple's young sons when they are arrested by the FBI in 1950.

In 1947, Millie and Ed Stein and their toddler son, David, move into an apartment on the eleventh floor in Knickerbocker Village on New York's Lower East Side. Her new neighbors are the Rosenbergs. Millie and Ethel's lives as friends, wives, mothers, and neighbors entwine, even as chaos begins to swirl around the Rosenbergs and the FBI closes in. Millie begins to question her own husband; s political loyalty and her marriage. As Millie is thrown into a world of lies, intrigue, spies and counterspies, she realizes she must fight for what she believes, who she loves, and what is right.