Wealthy stable heiress Vivienne has been mistreated for years by her cruel etiquette tutor Delphine, while poor laundry-shop girl Freya dreams of horse racing but cannot afford a single lesson. These long-separated identical twins meet by chance and decide to swap places to break free of their own traps: Vivienne runs the laundry to pay off debts, while Freya stands up to the tutor and takes charge of the stables. As the identity lie is peeled back layer by layer, the parents' old grudge dissolves, the sisters reunite, and the whole family is brought back together.
