(🈯)　(🕕)一(yī )宗(zōng )離(lí )奇失(🆓)蹤案(✒)，讓(ràng )山(📼)叔(shū )（(🏽)許(xǔ )紹(shào )(🍩)雄(xióng )飾(🌰)）痛失(shī )了(le )愛(ài )(🕸)妻山(🔱)嫂，也讓(ràng )張(zhāng )(🎺)以(🔧)靜(jìng )（高(🆖)海(🥈)寧飾(🛤)）(🌰)自(🍖)小(xiǎo )(🔬)沒了(le )(🗼)母(🐮)愛(🥩)。山(shān )(😧)叔本(běn )是(shì )(🌫)一名鎖(🎲)匠(jiàng )(🎏)，經(jīng )(🌗)營(🏇)一家(jiā )名(míng )為(wéi )(🚤)《誠(chéng )信(xìn )(🐿)》的鎖(👑)店(diàn )(🎩)，卻(🗄)因(yīn )(🛍)為這(zhè )(🕖)場(🕯)意(yì )(👁)外失(shī )(💆)智(zhì )(✳)了。他(tā )隨(suí )後(hòu )收(🚥)了一(yī )(🕌)位(wèi )(🛺)愛(ài )徒(tú )(🎿)程(chéng )浩(hào )(🥞)仁(rén )(🗑)（(😚)姜(🍮)皓文(🙁)飾(shì )(😻)）。阿(ā )仁接(jiē )(🥀)班(bān )(🕕)了山(😱)叔(🐖)的好(hǎo )(🔊)手(shǒu )藝(yì )，精通(📎)開(kāi )鎖，甚(shèn )至(zhì )(🌚)青(📯)出(chū )(🚨)於(yú )藍(lán )。正(🖲)因為(❔)他(💱)的這(zhè )(🌑)一(🎛)手(shǒu )(🌊)好(㊗)功(gōng )夫(🥔)，經(jīng )常被(📙)警(jǐng )(🔝)察(✋)找(🐑)去(qù )幫(bāng )忙(🤠)開(kāi )鎖(🌞)的他(tā )(㊙)也(yě )因此(🙉)和(💪)警探(tàn )(🎾)劉(⏰)業信(🍄)（(⛏)黃(huáng )浩(🤷)然飾(shì )）(🔔)變(🚻)成了(le )好(⛳)友(😍)。至(👺)今(⛳)阿(ā )仁從未遇(🕐)見(🐀)他(tā )開(kāi )(🚴)不(bú )了(le )(🤖)的(⚾)鎖(suǒ )(🕯)。一直(zhí )(🗳)到(dào )有(yǒu )一(yī )次的(💹)開(kāi )(💔)鎖工(🥊)作(zuò )中(👊)，他(💍)碰(🚗)見(jiàn )了(🦇)多(😊)年(nián )(🈸)沒(➡)見(jiàn )的(de )老(lǎo )(🌹)友(yǒu )(⛏)李(🐨)全(quán )凱（(🤷)陳沛(🌪)江(jiāng )(💅)飾(shì )）(🚶)。自(zì )(📟)此(cǐ )，接(😝)二(èr )(🔈)連(lián )(🏒)三的怪(guài )(🎥)事(shì )(🐡)陸(lù )續(🤔)發(fā )(📧)生(shēng )(🔍)，阿(ā )仁在(zài )回(huí )家(jiā )途(tú )中(zhōng )無意(🔷)間(👵)聽(tīng )見(💸)新(🥅)搬(bān )(🐞)來(🍽)的(de )(🏃)鄰(lín )(🔞)居(jū )關(🚲)小(📐)姐(jiě )(🔎)（(🌂)黃詩(shī )(🌱)棋飾）(🆙)吹(🖍)起(qǐ )了(le )耳熟(shú )(🚡)能詳(xiáng )的(de )(⏳)口(🏓)琴(qín )(🚽)旋(xuán )律。不曾(céng )(🕕)見(😳)過(guò )(👗)關(🎦)小(xiǎo )姐(🚻)的(de )阿(🔪)仁開(kāi )(👚)始(shǐ )對(duì )關(guān )小(🧘)姐產(chǎn )(🤼)生(❓)好(hǎo )(📬)奇並偷(tōu )(💑)偷(tōu )(🎴)監(jiān )(😉)視(shì )(🚤)著她(tā )。與(yǔ )(🏸)此同(tóng )(💁)時透(tòu )(⏺)過(🧥)以(yǐ )靜(jìng )，得(dé )(🐈)知(zhī )(🔬)當(dāng )年(nián )(🔍)山(shān )嫂(sǎo )的(de )撲索迷(mí )離(lí )(🖱)案，並不(bú )單(dān )純，極(jí )(💨)有(yǒu )可(kě )(🙅)能(néng )與(🛌)關小(xiǎo )(🕵)姐(jiě )的出(chū )現(xiàn )(🐇)有關(👆)。結(jié )果(🍉)阿仁(rén )(🏆)又在(🌒)某(mǒu )次的(de )(⛎)開(kāi )鎖工作中(🕌)撞見(jiàn )了(le )一宗(zōng )謀(móu )(♟)殺(shā )案(àn )(🦐)，因而(ér )(😻)被劉(⏭)sir視(shì )(🐑)為頭(tóu )號嫌疑(yí )(👧)犯。
　　(🏒)究(🎇)竟(jìng )阿(ā )(🌶)仁(🦄)在(zài )(🔂)隱藏著(zhe )什麼？(🍐)阿(ā )仁(rén )(🧔)是(🌮)不是(shì )(❗)遇(yù )(🚹)見(jiàn )(😓)了(le )一(yī )把(bǎ )(⏩)他(tā )(🤳)怎(zěn )麼(🃏)樣(yàng )都解不(😛)開(🏺)的(de )鎖？(🍏)那(➿)首(shǒu )(🤙)不(💘)寒而(ér )慄(📒)的口(kǒu )(😕)琴(qín )(🎛)旋(xuán )律(💽)，阿(🌄)凱(kǎi )的(de )出(chū )現(xiàn )，山(shān )嫂(💓)的(de )死，這(💦)把打(dǎ )(😇)不(🌟)開(🔀)的(🛥)鎖(suǒ )到(😎)底(dǐ )背(bèi )(🧖)後(🌥)捲入(rù )了(le )(🥘)多少(🤬)人(rén )(🚖)？警探劉(🚞)sir有(yǒu )(🎆)沒有(yǒu )機(jī )會(huì )幫(bāng )助(zhù )(🚬)自己(jǐ )的(de )(🏈)好(⛹)友(yǒu )擺脫(tuō )(🙋)嫌疑(yí )？(👐)難(nán )道(dào )(☔)每個(gè )人心中(zhōng )真(zhēn )有(😍)一把鎖，每(⏫)一(yī )(🙎)道(dào )(📦)門(😋)的(🎁)背後(🛺)都有(💼)許(xǔ )許多(duō )多未(🚰)知(zhī )的(🈹)故(🐁)事(shì )(🏚)在(zài )(🈲)等(🈶)著我(wǒ )(🍑)們(🐞)......