It is 1948 and the young and beautiful Marguerite Carter has lost her parents and survived a terrifying war, working for the SOE behind enemy lines. She returns to England to be one of the first women to receive a degree from the University of Cambridge. Now she pins back her unruly auburn curls, draws a pencil seam up her legs, ties the laces on her sensible black shoes, and sets out towards her future as an English teacher in a girls' grammar school. Outside the classroom Britain is changing fast, and Miss Carter finds herself caught up in social upheaval, swept in and out of love and forging deep, enduring friendships.