One day Claire, to escape her quarrelsome parents, takes refuge in the dump behind her house. There she finds a broken mirror, a nasty piece of sharp glass... yet she is strangely drawn to it. She soon discovers it has the power to transform even the most drab reality into a fairy-tale world: the grey sky is reflected blue, and Claire´s modest, suburban house is transformed into the most beautiful castle. As Claire grows older, always accompanied by her magic mirror, she can see her face without her teenage acne, and her town before it fell victim to thieving property developers. But, in reality, libraries are being turned into luxury flats wherever she looks, and the boy Claire loves is instead her worst enemy. Frustrated and angry with the mirror´s illusions, Claire is about to destroy it when the mysterious Peter steps in: he has also found a shard of broken mirror, and so begins their journey to piece together the larger puzzle...