『韓國(guo)(guo)倫理(li)媽媽的(de)朋(peng)友』介紹:退休警(jing)察豹叔(shu)膝下有(you)兒子阿(a)(a)(a)(a)(a)國(guo)(guo)(張國(guo)(guo)強 飾)和(he)養子阿(a)(a)(a)(a)(a)定(ding)(劉德華(hua) 飾),阿(a)(a)(a)(a)(a)國(guo)(guo)曾(ceng)是國(guo)(guo)際刑警(jing),如今返港(gang)擔任(ren)督(du)察;而阿(a)(a)(a)(a)(a)定(ding)則混跡黑道,雖然收(shou)入豐(feng)厚(hou)并頗得老板(ban)楊東(dong)海賞識,但(dan)(dan)阿(a)(a)(a)(a)(a)定(ding)拒(ju)絕販毒(du)令楊東(dong)海很為難。阿(a)(a)(a)(a)(a)定(ding)與(yu)阿(a)(a)(a)(a)(a)國(guo)(guo)情同手足,但(dan)(dan)并未打探彼此工作。不久,阿(a)(a)(a)(a)(a)國(guo)(guo)受命調查楊東(dong)海一伙,同時(shi)阿(a)(a)(a)(a)(a)定(ding)中了(le)楊東(dong)海苦(ku)肉計,不得不與(yu)毒(du)販接(jie)洽,結果引發(fa)血(xue)戰。背負殺(sha)人嫌疑的(de)阿(a)(a)(a)(a)(a)定(ding)被阿(a)(a)(a)(a)(a)國(guo)(guo)追(zhui)索,僥(jiao)幸逃脫后連累后者遭警(jing)隊處罰。另一方(fang)面,阿(a)(a)(a)(a)(a)定(ding)和(he)阿(a)(a)(a)(a)(a)國(guo)(guo)在警(jing)隊中的(de)對頭(tou)步步緊(jin)逼他們(men),最終身(shen)死,而阿(a)(a)(a)(a)(a)定(ding)的(de)女(nv)友雯雯(蕭(xiao)紅梅 飾)為阿(a)(a)(a)(a)(a)定(ding)幾次犯險,阿(a)(a)(a)(a)(a)定(ding)不忍棄她而去獨自出國(guo)(guo)避禍,