The crooks in London know how it works. No one carries guns and no one resists the police. Then a new gang appears that go one better. They dress as police and steal from the crooks. This upset's the natural order of the police/criminal relationship and the police and the crooks join forces to catch the IPOs (Impersonating Police Officers), including an armored car robbery in which the police must help the gangs to set a trap.
美籍华人于美珍 廖柏兴夫妇到香港投资，遇到美珍昔日情人林建业，共同寻找二十年前的女儿邓雯雯，从而透视出香港回归前夕港人的种种心态，折射出海外华人血浓于水的爱国情感
