Law with Two Phases is a 1988 Hong Kong action-comedy film directed by Jacob Cheung and starring Danny Lee and Eddie Chan. The film follows the story of Chief B, an unorthodox and streetwise CID member, who takes Police Officer Kit under his wing to solve a series of gang-related cases in Hong Kong.
As the film opens, Chief B is depicted as a man who relies on his instincts rather than rules and regulations to solve cases. He is shown to be a mamma's boy who lacks formal education but is highly respected by his colleagues, owing to his exceptional investigative skills. On the other hand, Officer Kit is depicted as a straight-laced and by-the-book police officer who recently got promoted to CID. He is studying to become an inspector and is eager to make a positive impression on his colleagues.
Chief B and Officer Kit's first case together involves a gang that is operating a counterfeit money printing operation in Hong Kong. Chief B assigns Officer Kit to gather information while he infiltrates the gang. Things go awry when Chief B is betrayed by a fellow undercover officer and is left stranded in a warehouse filled with the counterfeit currency. Officer Kit, who has been monitoring the situation from afar, leaps into action to rescue Chief B and bring the gang to justice.
In subsequent cases, Chief B and Officer Kit investigate a series of murders, robberies, and kidnappings that are linked to a powerful and ruthless crime boss. As they delve deeper into the case, they discover a web of corruption that extends to the top levels of the police force and the government. Chief B's unorthodox methods prove to be highly effective in solving the case, and Officer Kit learns a lot from his mentor.
Overall, Law with Two Phases is an entertaining and action-packed film that combines elements of comedy, drama, and suspense. The chemistry between Danny Lee and Eddie Chan is excellent, and the film's plot twists and turns keep the audience engaged from start to finish.