Christopher Snow is athletic, handsome enough, intelligent romantic and funny. But he’s whole life has been affected by xeroderma pigmentosum, a rare genetic disorder that means his skin and eyes cannot be exposed to sunlight. Like all Xpers, Chris lives at night – and has never ventured beyond his home town of Moonlight Bay, a picturesque, beautiful and strangely haunting place. He knows it as no-one else can know it, is intimate with its shadows and dark hours. Despite the limitations imposed on him by nature, Chris is determined to lead the fullest life possible and with the help of family and friends, he’s largely succeeded. But for Chris and all the inhabitants of Moonlight Bay, a terrible change of catastrophic proportions is about to happen.