In Warsaw in 1939, Elzunia is an indulged teenager who longs for a heroic life filled with romance. The outbreak of war shatters her hopes and illusions, and destroys her trust in those she loves. In the first days of the war, she meets Adam, a taciturn airman who, in despair over the occupation of his country, joins the Polish resistance and later flies bombers for the RAF. When her father is arrested by the SS, and her mother is accused of being Jewish, Elzunia is forced to live in the Warsaw Ghetto where children, and teenagers like her, have to make their own rules to survive. As Elzunia discovers her own strength in ways she never imagined, she becomes an activist in the Ghetto Uprising. Later she joins the Warsaw Uprising, a harrowing but heroic chapter of the war that has rarely been told. As Elzunia and Adam's stories unfold, Nocturne reveals the extraordinary courage of children at war. This is a story of heroism, resilience and moral triumph in the face of cruelty and betrayal.