Late in 1916, in a London menaced by the threat of German attack, Ivy Drummond is rescued from an air raid by a stranger who knows both when and where the bombs will fall. Will Rawlings - sent home from the front and suffering from shellshock - is tortured by nightmares and hallucinations. Will believes he can see the future. Ivy believes he needs medical help.But when Will's visions start coming true Ivy is torn between family, duty, honour and love. And Will is keeping secrets which threaten to pull their relationship apart.Against the backdrop of real events, The Postman's Daughter tells the story of two people left behind by the Great War, fighting their own personal battle for happiness.