王鍾初次執導《金手指》，叫人刮目相看。繼承了張徹陽剛勇猛的電影風格，將男性情誼發揮成新一代警隊精神。「金手指」意指向警方告密的線人。販毒集團殺害線人啞巴。警方找到啞巴的好友李修賢作臥底，修為友報仇，甘冒險挺身與警方合作，提供線索，追查真兇，最後找出集團主腦，卻是另有其人。八十年代，市民做證人的題材，非常大膽，《金手指》開創寫實警匪片的電影主流，直接影響李修賢後來執導的《公僕》和《皇家飯》。王鍾處理飛車鎗戰場面，火爆刺激，故事峰迴路轉，節奏明快。

Wang Chung plays the standard level-headed cop in charge of a rag-tag bunch of misfits and stereotypes (the coward, the playboy, etc.) who are after a drug runner. After their informant is killed, the team turns to a former Triad member (Danny Lee) to infiltrate the gang and bring the big boss down.