改编自昭和的代表小说家#松本清张#的推理小说「证言」，故事的舞台背景被置换成现代。石野贞一郎（谷原章介饰）与妻子幸子（西田尚美饰）结婚，继承了位于金泽的妻子的老家·石野诊所。他们过着看似幸福的生活，但事实上三年前他就开始与美术大学的研究生梅泽智久（浅香航大饰）外遇，为了隐瞒关系还各种撒谎，为外遇付出代价。原作中所描写的男人的悲哀与滑稽的本质原封不动，将主人公的不伦对象从女性变为男性，引入了双性恋、伪装结婚等现代世态，并且鲜明地描绘出一直忍耐的妻子让人意想不到的逆袭。出演该剧的还有堀部圭亮、吉村界人、山田佳奈实、宫崎美子等演员，由制作《积爱之人》、《武士的食谱》等作品的朝元雄三担任导演和编剧。

公关人员斯图（柯林?法瑞尔 Colin Farrell 饰）在外面瞒着妻子有一个秘密情人，为了躲避妻子的电话单检查，这天他又偷偷溜到街上公用电话亭准备打电话约会情人。不料，在他进入电话亭的一刹那，电话铃响了。虽然不知是谁打的电话，出于习惯，斯图拿起了听筒。阴沉单调的男 声随即响起，警告斯图不要挂掉，否则将血溅街头！斯图当然没有理会这恶作剧般的警告，正要走出电话亭。这时，一声枪响，一名路人已经倒在地上。斯图吓得魂飞魄散，动也不敢动。警察闻讯而来，然而他们对斯图的解释怎么也不相信，斯图还成了枪击案的主要嫌疑人。一时间，全城轰动，斯图的妻子和情人都闻讯赶来了……

21岁的透（冈田准一饰）爱上了母亲的朋友、年长他二十岁的已婚妇女诗史（黑木瞳饰），他们一见钟情并开始了地下恋情。透的好朋友耕二（松本润饰）也与家庭主妇喜美子（寺岛忍饰）有不伦关系，但情感十分复杂难解，他同时还有一位女友。三年来透听诗史喜欢的音乐，看诗史喜欢的书，每天下午在家等诗史打来的电话。他不能主动打给她，这是两人的约定。渐渐地，他越来越不能满足这样的关系，他向诗史提出了一起生活的要求。诗史是理性的，她清楚所拥有的一切都是丈夫给予的，离开丈夫意味着什么诗史清楚不过，所以对于透提出的要求她一直模糊回避。不过，当透在派对上不顾一切地当着众人的面向她表白并离去后，诗史终于做出了决定……

Fraught with over obvious symbolism, Hartley's early feature is nonetheless a joy to watch. Hal here shows us his uncanny ability to cast his characters perfectly came early in his career.Adrienne Shelley is a near perfect foil to herself, equal parts annoying teen burgeoning in her sexuality (though using sex for several years); obsessed with doom and inspired by idealism gone wrong she is deceptively – and simultaneously – complex and simple. Her Audrey inspires so many levels of symbolism it is almost embarrassingly rich (e.g., her modeling career beginning with photos of her foot – culminating her doing nude (but unseen) work; Manhattan move; Europe trip; her stealing, then sleeping with the mechanics wrench, etc.)As Josh, Robert Burke gives an absolutely masterful performance. A reformed prisoner/penitent he returns to his home town to face down past demons, accept his lot and begin a new life. Dressed in black, and repeatedly mistaken for a priest, he corrects everyone ("I'm a mechanic"), yet the symbolism is rich: he abstains from alcohol, he practices celibacy (is, in fact a virgin), and seemingly has taken on vows of poverty, and humility as well. The humility seems hardest to swallow seeming, at times, almost false, a pretense. Yet, as we learn more of Josh we see genuineness in his modesty, that his humility is indeed earnest and believable. What seems ironic is the character is fairly forthright in his simplicity, yet so richly drawn it becomes the viewer who wants to make him out as more than what he actually is. A fascinatingly written character, perfectly played.The scene between Josh and Jane (a wonderful, young Edie Falco . . . "You need a woman not a girl") is hilarious . . . real. But Hartley can't leave it as such and his trick, having the actors repeat the dialogue over-and-over becomes frustratingly "arty" and annoying . . . until again it becomes hilarious. What a terrific sense of bizarre reality this lends the film (like kids in a perpetual "am not"/"are too" argument).Hartley's weaves all of a small neighborhood's idiosyncrasies into a tapestry of seeming stereotypes but which delves far beneath the surface, the catalyst being that everyone believes they know what the "unbelievable truth" of the title is, yet no two people can agree (including our hero) on what exactly that truth is. A wonderful little movie with some big ideas.