本片為張徹早期執導之黃梅調作品，故事講述江夏縣令之子田玉川(金峰 飾)為漁家女胡鳳蓮(丁紅 飾)之父抱不平，誤殺總督盧林(井淼 飾)之子惹禍。玉川逃至江邊，走投無路，幸遇鳳蓮搭救，二人相對終宵，情愫漸生，玉川以傳家之寶蝴蝶盃相贈，訂下終身之約……

The story revolves around Tian Yu Quan (Chin Feng) who rushes to the aid of an elderly fisherman who is bullied by an arrogant relative of the Qiu Shan ministry. In the heat of the ensuing battle he kills the said man and is hence chased by the district's officials. Trying to use the waterway to shake off his enemies, Yu Quan finds a true friend in the old fisherman's bark-stearing daughter, Hu Feng Lian (Ting Hung) who becomes his loyal accomplice. As symbol for his gratitude, Yu Quan bestows Feng Lian with a Butterfly Chalice to reflect their eternal friendship bond...