三十(shí )年(nián )(🔨)代上海闸北区,两大(dà )黑帮“青龙帮”与“黑龙帮”势不两立(lì ),为争长短(duǎn )(🛤),各出奇(🏴)谋。“青龙帮”首领(👋)川图(tú )巴结军阀(🏇)以助声势(shì ),“黑龙帮”头(🎩)目魂为挫川锐(ruì )气,重金(jīn )礼(lǐ )(🔲)聘(🥄)过气枭雄凌锋(🕌)及(🛺)其女儿凌若华(郑(✖)裕玲)设计(🚑)令(🐶)川(chuān )出丑。川(chuān )则纳浪子欧(ōu )阳汉(周润发)于门(mén )下(🛑),使汉与(yǔ )(🔢)华纠缠(chán ),令华(🌊)分心(🥎)。 汉与(📙)华(huá )冤家路窄,华用尽办(㊙)法捉弄川,均被汉一一化解。汉华(huá )相斗,引起巡捕萧六(吕(🎋)良伟)注意(yì ),六嫌(⚾)汉油头粉面(miàn ),常借故为(💔)难,两(🍑)人遂对(💍)立(lì )。川(chuān )与六同(tóng )恋(liàn )(🏻)上(shàng )歌女韩(hán )梦蝶(dié )(姚炜),奈(🚶)何蝶倾心于汉(hàn ),川(chuān )得悉后心(🈺)生恨意(🔍)。川派杀手对付锋华父(🔷)女(nǚ )(👵),锋因而丧命(mìng ),华(🏴)重伤但幸(xìng )为(wéi )六所救(jiù )。川(🖍)利(lì )用与(yǔ )(🔥)警(🚡)察局(jú )长之关系令(lìng )六几陷于(yú )绝(jué )境(🎦),六后得汉暗中相(⏺)助,化险为夷。 华在(😉)养(yǎng )(🚤)伤(🚩)期间,对汉(hàn )之为人(rén )更为了解(jiě )(🐈),渐萌(méng )爱意。时日本派(pài )遣大佐(😲)来沪(hù )(⛅)密谋活动。大佐原为蝶(🎞)之生父(🐇),怂恿(yǒng )(🔍)蝶(dié )向川(chuān )进言,川不(🎆)惜卖国求(qiú )荣。六(🏗)向汉晓以大义(🔝),汉亦对川的卑鄙行(🤠)径齿(chǐ )冷,决与六连(🕤)手(shǒu )对付(🖥)川,一...