民国(👷)初年，徐警长（(📼)张(📒)国(guó )(🏽)强(🐌) 饰(shì )(🔼)）因(yīn )一(yī )(🕋)桩(zhuāng )案(🕟)件(jiàn )(🕸)与洋(🔱)行(🕰)的(🤢)景(🤴)氏（(🎺)蒋(jiǎng )志(zhì )光(guāng )(🎹) 饰(shì )）结下不(bú )解之(🏴)缘，并(bìng )(🥩)各(gè )获(😧)赠一(yī )幅(fú )(🌫)油(👋)画(huà )(⏬)用(🎲)作(zuò )纪(jì )念(🌗)当日破案有功(gōng )(🖲)。多(🐿)年后徐(xú )警长(🤷)的后(hòu )人(rén )(🎡)依(yī )旧(🕯)以(yǐ )投(🙍)身(shēn )警(jǐng )(✳)界(jiè )(🔲)为(🥄)荣(róng )(🛹)，人(rén )(🏐)称犀(xī )利(🕌)妹(mèi )(🛺)的(de )(📞)徐(xú )(🎿)小(xiǎo )丽(lì )（(🗑)杨(yáng )怡(yí )(🍮) 饰(shì )(🙁)）便(biàn )(🚸)是(shì )警(jǐng )队的一(🕕)名(míng )干(gàn )将(jiāng )(🐖)。加入(💞)重(⏺)案(àn )组(🌙)之(📎)后的(de )徐(🔩)小(xiǎo )丽(lì )(🌚)跟(gēn )随(🚨)上司(⏯)卢(lú )天恒(🔢)（马(mǎ )国明 饰）(㊗)侦(zhēn )破(pò )一(yī )件(jiàn )(🗞)又(🙂)一件(jiàn ) 棘(🐑)手的(de )(🙌)案(🤠)件，从旁(㊙)一(yī )(👓)直(zhí )用(🙉)专(zhuān )(💪)业物(🎾)理(lǐ )(⏰)学(xué )(🈴)知(zhī )识(shí )辅(🥫)佐(🤷)他(👃)们(men )(🧤)的(de )是(shì )卢(lú )(🤲)天(tiān )(🕙)恒(héng )的(de )校(xiào )(💠)友，同时(shí )也(yě )是(🥕)大(dà )(🕐)学(🐀)的(🧟)副(fù )(🚴)教(jiāo )授(🤖)、(⚾)景(🕯)氏后(hòu )人(rén )(🗳)景(🤘)博(bó )(🈁)（林(lín )(💝)峰(fēng )(💹) 饰(🏉)）(🥊)。 　(💍)　(🚗)出(chū )生寒(hán )微(wēi )(🈸)的(➡)徐(xú )小(xiǎo )(🐛)丽(lì )(🌹)对(duì )景博的佩(pèi )(🤷)服(fú )逐(zhú )(🌪)渐(jiàn )(💅)变(🌼)成爱(ài )(💹)慕(mù )(📟)，景(jǐng )博(😝)也(🔈)对关心照(zhào )(🎥)顾(gù )自己(🤔)的(📧)徐小(xiǎo )(😙)丽(lì )日(rì )渐(jiàn )(📛)倾(🔤)心。但(dàn )因(🥤)两家家(♌)世(💸)悬殊(shū )(🐞)，父(🏃)母(🔞)的(de )阻(zǔ )(🚲)拦(lán )(📐)让景(🌂)博决(jué )定(👄)放(fàng )弃(qì )这(zhè )(🖍)一(🔫)段(duàn )(💣)感(gǎn )情(qíng )(🚡)。另(lìng )一(yī )边，花(huā )(🎐)花(huā )(🍁)公(🔲)子(👛)卢天(tiān )恒(👗)与(yǔ )(🎦)密(📤)友(yǒu )(🚻)敏(mǐn )(🍺)嘉（廖(liào )碧(bì )儿(ér ) 饰(🧘)）一(yī )直(zhí )维(📬)持着亦是(shì )(🎴)朋(péng )友(yǒu )亦(yì )(🚩)是(shì )(🍹)恋(⛴)人(🏸)的(de )暧(💁)昧(mèi )关(guān )(⏺)系(🧥)。却不(bú )料(🐈)敏(🔬)嘉(🍯)突(tū )(🔍)然(rán )有了(le )(🈂)爱(ài )(🚪)人(🐌)，并想与(👼)之(😲)结婚(hūn )。令人(rén )(💨)焦(jiāo )(🈸)灼(zhuó )(🙅)的(de )(🛃)案件(jiàn )(🍾)层(🕵)出(chū )不(bú )穷(qióng )(📯)，这两对(duì )年(nián )(🏗)轻(qīng )人的(de )爱情(🌒)又将(🎆)如何(hé )继(🍝)续(xù )…(🍈)…(🕌)