Driving in the heart of the Highlands, Edmond Murray (James McAvoy) receives a call from his ex-wife (Claire Foy), in tears. Their 7-year-old son went missing from a campsite. Soon it becomes clear that the child was kidnapped and the parents give way to despair.。电影发生在森林深处的一作女子寄宿学校,这所学校的房子散落围绕着一座大森林,不同年纪的女孩以不同颜色的头丝带区分.她们也和同龄人一样,通过舞蹈,自然课了解对于她们来说很遥远的外面的世界.每天晚上深宵时分,年长的女孩都会不约而同沿着小路走向森林深处........。