Blood Edge of the Line of Duty

This film (drama)Also known as火线追凶之血色刀锋，is aMainland ChinaProducerwomen sex，At2009Released in year 。The dialogue language isMandarin Chinese，Current Douban rating7.9(For reference only)。

In the old Shanghai Bund before liberation, it was a dark era of rampant crime and distorted justice. Prices soared, and gangs, warlords, and foreigners ruled with tyranny, while the oppressed citizens longed for justice. A group of brave and righteous young people stepped up, using their wisdom and beliefs to disperse the darkness. Detective Zhong Lang (played by Zhong Hanliang), who has been put on extended leave due to a mistake, is causing a commotion in a restaurant when his sister, journalist Zhong Hui (played by Tu Lieman), brings him shocking news. A body has been discovered in the southern suburbs; the victim was killed by having their throat slit, and their hands were bound with a sailor's knot. Upon hearing this, Zhong Lang comes to his senses, realizing that three years ago, there was a notorious killer known as the "Throat Slayer," whose methods were identical to the case in the southern suburbs. It was because Zhong Lang arrested the wrong suspect that the Throat Slayer evaded justice, leading to more deaths. As the once-great "Tiger Detective," Zhong Lang, with the help of intern detective Han Fei (played by Shi Xiaolong) and medical university professor Yu Shengnan (played by Qi Fang), begins his investigation anew...