London, 1940. Emmeline Lake is doing her bit for the war effort, volunteering as a telephone operator with the Auxiliary Fire Services. When Emmy sees an advertisement for a job at the London Evening Chronicle, her dreams of becoming a Lady War Correspondent suddenly seem achievable. But the job turns out to be working as a typist for the fierce and renowned advice columnist, Henrietta Bird. Emmy is disappointed, but gamely bucks up and buckles down. Mrs. Bird is very clear: letters containing any unpleasantness must go straight in the bin. But when Emmy reads poignant notes from women who may have gone too far with the wrong men, or who can't bear to let their children be evacuated, she is unable to resist responding. As the German planes make their nightly raids, and London picks up the smoldering pieces each morning, Emmy secretly begins to write back to the readers who have poured out their troubles.