The drama is based on the best selling same-titled novel Minato Kanae, and is about two families that reside in the same upscale neighborhood. Amongst all the beautiful homes lined up in a row, there is a small house that belongs to the Endo family. Even though it is small, but it is a dream come true for Endo Mayumi. Living directly opposite them, is the elite Takahashi family. With their three gifted and smart children and a doctor husband, the Takahashis seem like a blessed and happy family.

One day, Takahashi Hiroyuki is found murdered. The police suspect the murderer is someone the family knows..

四年前的一天，家庭主妇远藤真弓（铃木京香 饰）终于实现梦想，随丈夫启介（宫迫博之 饰）和女儿彩花（杉咲花 饰）搬入了高级住宅区云雀之丘。然而家境平平的远藤家，丝毫不能见容于富豪云集的社区，以小岛聪子（夏木マリ 饰）为首的老住户代表让远藤一家倍感羞辱和压力。邻里之间，只有高桥一家平易近人，真弓也和高桥家女主人淳子（石田ゆり子 饰）结为好友。时光流转，2013年1月22日夜，高桥家男主人弘幸（田中哲司 饰）在家中遭人重伤，不治身亡。淳子深受打击，儿子慎司（中川大志 饰）则行踪不明。这并非一起偶然事件，一切都和高桥家、远藤家以及云雀之丘所有住户们四年来的纠葛息息相关……

　　本片根据推理小说作家凑佳苗的同名原作改编。