A wartime romance - Summer 1939. Leonie Harcourt, nearly eighteen, finds herself pregnant by her Parisian lover, Luc Gosselin, in a London preparing for war. She is dispatched to an unknown aunt's farm in Somerset. Luc doesn't return after the war, but throughout all the years ahead Leonie keeps what he gave her to take care of - a small locked suitcase - and it is this that will reconnect her at last with the Gosselin family . . .