Warm, hard-working Ada Harris (Lesley Manville) is a widowed cleaning lady in 1950s London, who spends most of her time tidying up after lives far more exciting and glamorous than hers. But when she sees a Dior dress in her client's bedroom, she falls madly in love – and sets her mind on travelling to Paris to get one herself.
After she works, starves and gambles to raise the funds to pursue her dream, she embarks on an adventure which will change not only her own outlook, but the very future of the House of Dior.
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