这部纪录片以偏远的墨西哥村庄"回声"为背景,记录了山谷的孩子们贫苦艰难的真实生活。在这里霜冻和干旱折磨着大地,孩子们照顾着羊群和年迈的祖母,并从父母的一言一行和沉默中学会了理解死亡、疾病和爱 。。宫本(池松壮亮 饰)是个职场菜鸟,在恋爱和工作上都十分笨拙,一直烦恼着自己在社会上生存的意义。直到某日,和靖子(苍井优 饰)一见钟情后,他的人生终于露出一线曙光,稳定的日子过没多久,却突然发生了一件大事,彻底的改变了他们,让靖子和宫本的关系降到了冰点,宫本要如何做才能巩固这份得来不易的爱情呢?。This year Silent Witness celebrates its 20th anniversary with five explosive stories that take the show into new and uncharted territories as well as delving into the murky depths of city life. Five contemporary thrillers that start amongst the familiar landscapes of London and end up in the dusty scrubland of Mexico.。