民国初(chū )(🔨)年(🆓)，徐(xú )(✒)警(jǐng )长(🥇)（(📼)张国(guó )强(qiáng ) 饰(🔼)）因(yīn )一桩(zhuāng )(😘)案(àn )件(🕸)与(yǔ )(🛍)洋(yáng )(🔱)行(háng )(🕰)的景(jǐng )(🤴)氏（蒋志(zhì )(🎗)光(guāng )(🎹) 饰(shì )(🥈)）结(jié )(🛤)下(🌰)不解(jiě )(🔬)之(zhī )缘，并各(gè )(💤)获(huò )赠一幅(fú )油(yóu )画(⏬)用(🎲)作(zuò )(🎏)纪(❣)念当(dāng )(🏇)日(rì )(♑)破案(😎)有(🚤)功(gōng )(🖲)。多(duō )年后(hòu )徐警长的(de )(🗄)后人(🎡)依旧以(yǐ )投(🙍)身(💆)警(jǐng )界为(🥄)荣(róng )(🛹)，人(🏐)称(chēng )犀(xī )利(lì )妹(mèi )(🛺)的(de )(📞)徐小(🎫)丽(lì )(🥞)（杨怡 饰(shì )）便(biàn )是警队(duì )(🐶)的(🥀)一名(🤯)干(gàn )将。加(jiā )(🔊)入(rù )重案(àn )(🚢)组(zǔ )(🌙)之(zhī )后的(de )徐小丽(lì )(🌚)跟(gēn )随(suí )上(shàng )司(⏯)卢天恒（(❔)马(💱)国(guó )(🦗)明(míng ) 饰）侦(🥎)破(pò )一(💻)件又一(yī )(📙)件(jiàn )(🔝) 棘手(shǒu )(🏂)的案(àn )件，从(cóng )旁(㊙)一(yī )(👓)直(zhí )(🙀)用(yòng )(🙉)专(zhuān )(💪)业(yè )物理(⏰)学(xué )知(zhī )(🍄)识(shí )辅(fǔ )(🥫)佐(zuǒ )他(👃)们的(🔔)是(shì )卢(🤲)天(tiān )恒(⛳)的(de )校友(yǒu )，同(🏯)时也(yě )(🎋)是(shì )大(🕐)学(xué )的副教授(🤖)、(⚾)景(🕯)氏(shì )(🌮)后人景(jǐng )(🤘)博（林(lín )(💝)峰(fēng )(💹) 饰(shì )）(🥊)。 　　出(chū )生(🦇)寒(hán )(😊)微(🈸)的(de )徐小(🐛)丽(lì )(🌹)对(⛏)景博(bó )(👪)的(de )佩(🤷)服(🃏)逐(zhú )渐(💅)变(🌼)成(🚶)爱(ài )(💹)慕(mù )(📟)，景(💯)博(bó )(😝)也对(🏒)关(guān )(🙎)心(xīn )照(zhào )(🎥)顾(gù )(🐡)自(zì )(🈺)己(jǐ )(🤔)的徐(xú )小(xiǎo )丽(lì )日(⏲)渐倾(🔤)心。但因(🥤)两(liǎng )家(jiā )家(jiā )世(shì )(💸)悬(xuán )殊(shū )(🐞)，父母的(🏴)阻(zǔ )拦让(🔎)景(🌂)博(🔙)决定(dìng )(👄)放(fàng )(🐖)弃(🆙)这一(yī )段(💣)感(🔥)情(qíng )。另(lìng )(📞)一边(🏓)，花(huā )(🎐)花(🍁)公(🔲)子(zǐ )(👛)卢(lú )天(😳)恒与(🎦)密(📤)友(🚻)敏(🍺)嘉（(🐂)廖(liào )(👚)碧儿 饰(shì )）一(yī )(🤼)直(zhí )维(wéi )(📬)持(chí )着亦(💑)是朋(😉)友(yǒu )亦(yì )(🚩)是恋(liàn )人(rén )的(❄)暧(💁)昧(🈺)关(guān )(⏺)系(🧥)。却(👅)不(🈳)料(🐈)敏(🔬)嘉(🍯)突(tū )然(rán )有(yǒu )(💕)了(🈂)爱(ài )人(rén )，并(🖱)想(xiǎng )与(yǔ )之(😲)结(jié )(🐅)婚(hūn )(⛅)。令(✒)人(💨)焦(jiāo )灼(🙅)的(🛃)案(àn )件(jiàn )层(céng )(🕵)出(chū )(🎞)不穷(📯)，这(♊)两(👆)对(duì )年(nián )(🏗)轻人(rén )的(de )爱情(qíng )又(🎁)将(jiāng )如(rú )何(hé )继(jì )(🍝)续(xù )(🐸)…(🍈)…(🕌)