Dee (Carol Cheng) is a disheveled, hot-headed HK cop; Apple Yu (May Lo) is an urbane, designer-dressed inspector from the ICAC. Now, they're partners trying to bring down (still another) triad crime ring. To intimidate Apple, Dee dresses like a model, but finds that her partner has taken on a street-punk guise to intimidate her. They locate a priest who's a triad defector; and while Dee takes a nun's guise, her partner tries to pull off being a junkie in withdrawal.
Fung and Pan, two policewomen, are assigned to protect a gangster's mistress turned police informant. Her lover orders her assassination, but the attempt fails. In a desperate bid to prevent her going to court, he threatens to kill Pan's stepfather. Pan has no choice but to leave the police force in order to protect her family and seek her revenge.
Mark, a local cop is investigating a string of jewel robberies. He soon discovers that the men behind the crimes is the notorious"Red Devil" and his band of Ninjas. Mark teams up with Billy, a man out for revenge.
A couple camping in the woods is attacked by a trio of thugs and the wife is beaten and raped. A few months after the assault, she is hunting down the three (who happen to be diamond smugglers) by posing as a dealer looking to sell some stolen merchandise. Meanwhile, her Interpol agent husband is doing some tracking of his own in the hopes of bringing them to justice. As they make their plans, a group of ninjas is watching from afar, waiting to make their move. (IMDb)
The Ninja Empire has been run by an evil master and one member decides to leave the empire. The ex-Ninja wants a Hong Kong detective to track down the new leader and end his reign of terror. "Cut-and-paste" transformation of Taiwanese movie "To catch a thief" (1984; directed by Gam Ming) with new Hong Kong footage.