罗刚(gāng )(王羽饰(shì ))在亚(✒)洲区(🥇)是个声名显(🍩)赫(🔼)的私家侦探,在诚(chéng )意恳求之下(🎺)接了一(yī )个婚外情的小(🍖)案子,而(🐮)第三者名(míng )为“唐娜”(坣娜(nà )(🌗)饰),是个(gè )歌星。日本黑(hēi )社会(huì )迫使(shǐ )“唐娜”吸(xī )(🙍)毒后,却被罗(🚉)刚(gāng )(🏐)所(suǒ )救(jiù ),并(🛺)爱(ài )(📞)上了她,帮她戒毒。因为罗刚撑握了日本(🐖)黑社会(huì )的贩毒(🌙)证据,从而日本(📯)人(rén )抓住“唐娜”,引罗刚自投罗网。“唐娜”为(wéi )救(🐑)罗刚(gāng )(🙌)而死,最(🙄)后罗刚消(xiāo )灭了日(rì )本黑社会(⛏)头(tóu )目(🤷)