International narcotics officer CHOI (starring Eddie CHEUNG), has been demoted by his superior officer MA (starring Simon YAM) to local duties after partaking in bribery in the line of work. He’s assigned to a death scene investigation by YAN (starring Maggie SHIU) where the deceased, YUNG’s (starring Tony HO), body had laid undiscovered for eight years, and only recently discovered by maintenance workers during the renovation of an old block of flat. CHOI looks into CHAO (starring Timmy HUNG) as the prime suspect, and linking it to adultery with YUNG’s widow PING (starring Dada CHAN) as an accomplice. The case soon comes under scrutiny by a high-ranking court prosecutor SANTOS (starring Joe Junior). Under his inquiries, the investigator becomes the investigated, and CHOI’s actions fall under suspicion as all manner of inconsistencies come to light from his statement. YUNG was a man of many vices, with few crimes left untouched by his hand - rape, drug smuggling, blackmail and working alongside notorious gangster FAI WAI (starring Suet LAM). Has CHOI framed a pair of innocents? How did this case end up becoming an unsolved one? Who was responsible for burying this case?

跨國販毒調查科警長駱英財（張兆輝 飾）被捲入受賄事件，被上司馬文超（任達華 飾）調至地方警署，由重案組督察張嘉茵（邵美琪 飾）手上接手調查一宗屍體發現案件。死者胡英勇（何華超 飾）屍體被維修工人在舊樓重建工程中發現，死去已經八年。駱英財鎖定嫌疑犯為爛面超（洪天明 飾），及死者妻子言鳳萍（陳靜 飾），二人犯案動機通姦殺人。案件被律政署高級檢控官山度士（Joe Junior 飾）質疑。死者生前無惡不作，涉及強姦、迷姦、販毒及勒索，更觸及駱英財與黑幫大佬肥威（林雪 飾）的一些不可告人的勾當。在山度士質問下，駱英財由查案者而變為被調查者。到最後許多令人奇怪的情節不斷從駱英財的口供裡頭展現。究竟誰才是真正的殺人兇手？為何此案被消失了八年之久、更成為了一件懸案？駱英財是否誣陷他人? 還是另有內情?