在这部不当交易悬疑/惊悚片中,震惊全国的强奸幼女案，在嫌疑人被击毙后，警察厅压力重重。在青瓦台，总统关注下，警察厅长决定让毫无背景的崔哲基警长（黄正民 饰）了结此案，并许诺事成即可升迁。崔哲基找到了线人张锡邱（刘海镇 饰）。此前，他曾以竞标贿赂罪拘留了房地产大亨金会长，帮张锡邱拿到了海东大厦的所有权。所以张锡 邱也答应崔哲基找人顶包。他威逼利诱，迫使第二嫌疑人李东石认罪。而崔哲基没想到，张锡邱受到金会长挑衅后，竟派人在高尔夫球场暗杀了他，并拍下了检察官柱阳（柳承范 饰）与金会长谋面的照片。而柱阳收到照片如惊弓之鸟。他在紧盯案件过程中，意外发现了崔哲基与张锡邱的不当交易，而他也向崔哲基提出了另一个交易。于是，一场由检察官、警察、线人共同演绎的离奇戏码开始了……
本片获第32届韩国电影青龙奖最佳影片、最佳导演、最佳编剧三项大奖。
A serial killer targeting elementary school students is on the loose. When the most probable suspect dies and the case looks like it's reached a dead end, police brass decide to create a killer - and anyone will do. Though Detective CHOI boasts an incredible number of arrests over his career his rank never showed it. Deciding this is his last chance for professional redemption, he makes a deal with JANG, who he has been investigating, and together they decide to set up an existing suspect as the murderer. The only hurdle in their plan is public prosecutor JOO, who takes on the case and who had been involved in a deal with rival construction contractor KIM. When secret deals and back alley agreements start to come to light, it only serves to drag all of them deeper and deeper into a dark hole of questionable ethics and abuse of the law.
真实的世界并不优雅。庄严的制服下你我都是普通人。暗讽机构黑暗面。关于主角崔班长的人设，及电影中的细节。关于组长之死的一点分析。剧情逻辑硬伤，为剧情发展猪脚努力的把事情做到了最坏的结果。胆子还真大，总统都不是好鸟了。它冗长的铺垫就是为了最后一击。真相被左右 命能换正义？。生存之道。
| 文件名 | 格式 | 语种 | 地址 |
|---|---|---|---|
| 不当交易修正版.srt | SRT | 简体中文字 | |
| 不当交易.The Unjust.2010.Bluray.720p.DTS.x264-LooKMaNe.srt | SRT | 简体中文字 | |
| 不当交易（繁体字幕）The Unjust.2010.Bluray.720p.DTS.x264-LooKMaNe.cht.sr. | SRT | 繁體中文字 |
