玛利亚（达科塔·布鲁·理查兹 Dakota Blue Richards 饰）的父亲身负重债，逝世后只留给了她一本厚厚的古书《月亮坪的历史》，里面记载着月亮公主与白马的童话。十三岁的玛利亚变成了孤儿，来到月亮坪庄园投靠叔叔本杰明（艾恩·格拉法德 Ioan Gruffudd 饰）。然而入住古堡不久，玛利亚就发现怪事接踵而至：她的东西总是被到处乱放，屋里的钢琴会自动演奏，夜里甚至有一匹白马的影子在屋外晃荡……然而对于这些疑问叔叔却只字不肯透露，玛利亚只好偷偷翻阅那本被叔叔藏起来了的古书，终于得知了月亮坪上一段久远的神秘往事与仇怨，原来整个山谷已被月亮公主的诅咒笼罩百年，唯有等待一位拥有纯真心灵的解咒人出现……...
When Peter snaps his actions cause his family ties to be broken forever, catapulting his three children into turmoil. His past finally catches up with him, also affecting the intertwined fates of three associated families....
