1947. London. Mrs Harris spends every day cheerfully cleaning for her clients. She wants for nothing. Or so she thinks... One day, she happens upon something that takes her breath away - a Christian Dior dress. And something deep within her awakens. She sets out on an unthinkable quest to have a Dior dress of her own. On her incredible journey, Mrs Harris realises that she can finally let go of her past. This is the story of one woman's dream of achieving the impossible. This is the story of the extraordinary Mrs Harris.