Ruth lives in the beautiful city of Vienna and is wildly in love with Heini Radik, a brilliant young pianist. But her world is about to change forever. When Hitler's forces invade, Ruth's family flees to London, but she is unable to get a passport. Quin, a young professor and friend of the family, visits Ruth and in an effort to bring her back to London, he offers a marriage of convenience. As Ruth throws herself into her London life, Quin begins to fall desperately in love with her.

When Ellen Carr abandons grey, dreary London to become housekeeper at an experimental school in Austria, she soon knows she's found her calling. Swept into an idyllic world of mountains, music, eccentric teachers and wayward children, Ellen brings order and joy to all around her. But it's the handsome, mysterious gardener, Marek, who intrigues her - Marek, who has a dangerous secret. As Hitler's troops march across Europe, Ellen finds she has promises to keep, even if it means sacrificing her future happiness.

Anna, a young countess, has lived in the glittering city of St Petersburg all her life in an ice-blue palace overlooking the River Neva. But when revolution tears Russia apart, her now-penniless family is forced to flee to England. Armed with an out-of-date book on housekeeping, Anna determines to become a housemaid and she finds work at the Earl of Westerholme's crumbling but magnificent mansion.

In 1896, in a pilgrim church in the Alps, an abandoned baby girl is found by a cook and a housemaid. They take her home, and Annika grows up in the servants' quarters of a house belonging to three eccentric Viennese professors. She is happy there but dreams of the day when her real mother will come to find her. One day a glamorous stranger arrives at the door.

Spring, 1922. Tessa is a beautiful, tiny, dark-eyed princess - who's given up her duties to follow her heart, working for nothing backstage at the Viennese opera. No one there knows who she really is, or that a fairytale castle is missing its princess, and Tessa is determined to keep it that way.