Mahjong Dragon.

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...