剧情描述嗜赌如命的香港女警秀钿，因负债累累而回大陆东莞相亲。另一方面，赌术精堪的北鬼首在出狱之后，遭死对头南天龙纠缠不清，希望将他招揽旗下，但他已决心退出江湖，只好想办法逃离中国。秀钿巧遇北鬼首，答应跟他假结婚藉以交换传授赌术。

North Quick Hands, a gambler, killed a gang in revenge for his friend, for which he was sentenced to prison. South Tin-lone waited for Quick Hand's release, so that he might be recruited into the gang. But Quick Hands refused. Meanwhile, Sau Tin, a Hong Kong policewoman addicted to gambling, went to Dongguan to seek a husband. She helped Quick Hands to leave China by arranging a fake marriage, as he promised to teach her some gambling tricks. South Tin-lone and his gang followed Quick Hands to Hong Kong and a series of fights ensued...