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