晨(chén )(🈯)曦初(🍅)现的上(shàng )海滩(tān ),放浪形骸(hái )(📒)的(🏽)工部(🍩)局英国要员威尔逊(xùn )在一间(🤢)酒吧被人(rén )枪(qiāng )杀。刚好(hǎo )晨跑路(lù )过此地的法租界巡(xún )捕(📿)房探长钟朗(钟汉良 饰)与凶手穿(🕔)着打扮(bàn )一模一(🛍)样,因(🕯)此被(🙍)目击证(🔲)人指(zhǐ )(🛹)认为凶手。公共租(🎿)界巡捕(🗑)房巡长刘(liú )天(tiān )德(尹天照(zhào ) 饰(🤯))接到报案后(⏺)赶到现(📎)场(chǎng ),从(cóng )钟朗身(shēn )上(🚨)搜出威尔(🖲)逊的钱,钟朗有口难(🥎)辩。于胜(shèng )(🙂)男((🔝)齐芳 饰)和韩(🌞)非(fēi )(释小龙 饰(shì ))焦急万分,无(wú )奈威尔逊身居要职(zhí ),英国方(🏯)面(🤳)极(jí )为震怒,而(ér )钟(🧣)朗(lǎng )和曾作(🌮)为他师父(🈁)的刘天德又于数年前积(jī )(💍)下宿怨,导致(➡)钟朗(🐛)的处(chù )境极(jí )为不(🤷)利。胜男和韩非(fēi )被迫展开独立调查(chá ),与此同时新的凶杀案(àn )发(fā )生,使得刘天德(dé )对钟(zhōng )(🐞)朗一案(🔞)也产(chǎn )生(📐)疑惑。