出(🈯)身于犯罪世家(🆓)的李志坚(🥇)(曾志伟 饰)却从小立(lì )志做警(🔱)察(🕰)。皇天不(bú )负苦心人,终于借着警队(duì )破例收纳(nà )残(cán )疾人(📿)士的机会(🎲),个矮的(de )李志坚如(rú )愿加入警队并进入了毒品(🎡)调查(chá )组,在成(chéng )功完成任务(wù )后,志(🕌)坚再入扫(🎫)黄组(zǔ ),执行任(rèn )务期(qī )间被流(🐶)莺(yīng )恬妞(恬妞 饰)破处并爱上了对(duì )方,但恬(tián )(🛑)妞很快消失于(💱)茫(🦗)茫(🌑)人海(🌊)。志坚再(💻)调(🗞)重案组,这次的对(🤠)手(shǒu )是极恶罪犯(fàn )“无(💪)人性(🎾)”,志坚(⛏)一(yī )举(jǔ )将无人性(xìng )击毙,引得无人性父亲请出精于乔装的杀手“千(qiān )面人”(苗(💝)侨伟 饰)为儿(🛎)子(zǐ )报仇,千面人出手连害多名警(jǐng )(🥋)员(yuán ),重案组一(yī )时风(fēng )声鹤(💯)唳(😝),人人请调,李(lǐ )志坚(📧)受命(mìng )(😙)与千面(miàn )人周(👌)旋(💏)到底(🥤),这位小小小(🐞)警察(🏃)的无厘头警员经历该(👄)如(🐖)何收场?