Summer Pratt is recently engaged to Clint, and she couldn't be happier. A surprise engagement party introduces her to the Walsh couple--Clint's boss, Travis, is wealthy and handsome. Bubbly Mrs. Walsh, a blonde named Lily, is happy to host the soiree and indulges a lot in wine and champagne. Summer is an interior designer, and Lily immediately asks her to make over their sitting room. While taking measurements, Summer gets to meet the mysterious daughter, Sophie. The nanny suddenly quits, so Lily desperately asks Summer to fill in until they can hire a replacement. Caring for Sophie is peculiar--she talks to an invisible friend, mostly keeps to herself, and her parents keep changing their stories about what is wrong with the girl. Neither parent seems overly involved or loving of the girl, though Lily certainly seems to try harder to keep the girl under wraps and behaving properly. Summer gradually grows more suspicious of the entire family, and soon realizes that none of the three are truly what they seem to be. Her attempt to rescue Sophie from what she believes to be an abusive situation ends up putting the child in more danger as a woman from the past steps in to finally destroy the family. Summer now has to face the consequences of her own snooping as she tries to save what's left of the Walsh family. 　　译文(2): Summer Pratt 最近和 Clint 订婚了，她高兴极了。一个惊喜的订婚派对把她介绍给了沃尔什夫妇——克林特的老板，特拉维斯，富有而英俊。活泼的沃尔什太太是一位名叫莉莉的金发女郎，她很乐意主持这个晚会，并沉迷于葡萄酒和香槟。莎莫是一个室内设计师，莉莉立即要求她改造他们的起居室。在测量尺寸的时候，萨默见到了神秘的女儿苏菲。保姆突然辞职了，所以莉莉拼命要求萨默顶替她直到他们找到替代者。照顾苏菲是很特别的——她和一个看不见的朋友交谈，大多数时候都是独来独往，她的父母不断改变他们关于这个女孩的故事。父母似乎都没有过多的参与或爱的女孩，虽然莉莉似乎肯定更努力地保持女孩的包裹和举止得体。夏天渐渐开始怀疑整个家庭，很快意识到这三个人都不是他们看上去的那样。她试图把苏菲从她认为是虐待的环境中解救出来，结果把孩子置于更危险的境地，因为一个过去的女人最终会破坏这个家庭。莎莫现在不得不面对自己窥探的后果因为她试图拯救沃尔什家族的残余。