Old Time Buddy - To Catch a Thief

KI, a new CID, is reluctant to go with the stream. His supervisor, LUI KING, sets him up and sends him to negotiate with a kidnapper. Unexpectedly, KI makes the kidnappers surrender with his passion. Inspector, LOK KUNG, assigns KI to investigate the female gallant, BLACK ROSE, so that KING could not torture him anymore. KI meets his childhood friends, TSE SZE (TSE YUEN). KI sings in the disguise of a famous singer, CHING SHUI, for SZE`s sake. This fraud involves KI into trouble. His home is burnt. KI has no where to go but to follow SZE to live in his uncle, TSE PING`s, home - the Art Garden. KI comes across CHU in the Garden. They admire each other.

SZE and FONG hate each other. CHU`s mother, SHEUNG, is very dissatisfied with the boss who deducted their salary, she decides to steal money. However, KI meets her before she slipped in the house. KI bites SHEUNG`s neck during the struggle. KI knows that this lady must be living in the Art Garden. He swears to find out who is `BLACK ROSE'. SHEUNG tells CHU that she is ` BLACK ROSE`. CHU does not believe in her words.

KI checks everybody`s neck. He arranges spicy hot-pot for everybody in the hope that they have to take off their clothes. However, SHEUNG sees through his plot. SZE asks CHU to bring him the deposit to Central. However, FONG plays trick on SZE. SZE goes to Tai Po instead. He even loses the deposit. SZE threats KI to lend money from LULU with his charm. The next morning, CHU slaps KI angrily. All think that KI and LULU are dating. CHU is very upset. KI is difficult to get at the truth.

KING wants KUNG to return. KI bets with KING that he will arrest BLACK ROSE within three months. KUNG`s daughter, PEGGY, competes with LULU for KI. SZE tells them that KI only loves CHU. CHU is very embarrassed. FONG avenges for CHU. She makes KI stay on the amusement ride the whole night. AU YAT GUN delays the year-end bonus payment. SHEUNG decides to steal money. CHU volunteers to replace SHEUNG. KI suspects FONG. He follows CHU mistakenly. KI is going to take off her mask.

SHEUNG hits KI and places him outside the Art Garden . KI gets a message from BLACK ROSE. She asks KI to distribute the money to everybody. SZE tells them that BLACK ROSE had given him a bowl of rice when he was a child. KI intends to join Black Rose Gang and disguise as a thief. He indicates to FONG that he also wants to join in the `Rob the Rich and Help the Poor` team. FONG is very confused. FONG even accuses him at the police station. KING takes the chance to hit KI. LINA`s car has broken down. SZE gives her a ride. He finds out that LINA is his boss`s daughter. FONG lies to LINA that she has got a rich boyfriend. She asks CHU to disguise as a male and pretends as her boyfriend.

FONG`s friend ROBERT intends to rape FONG. SHEUNG hits him. ROBERT flees away. FONG wakes up and sees KI. She thinks KI is her hero. KI asks FONG whether she is the Black Rose Gang member. FONG denies. LINA is hurt and is being sent to the hospital. SZE fears that he will lose his `rice-bowl`. He makes FONG to apologize to LINA, LINA forgives FONG and even invites FONG to her party. From ROBERT, KI knows that LINA wants to trap FONG. KI hurries to the party. FONG finds a diamond on her body. SZE captures her diamond in chaos. SZE is arrested. CHU decides to steal the diamond so that SZE could be free. CHU discovers that KI is a cop after competing her mission.

KI looks out through the window. CHU fears that her identity is revealed. Fortunately, it is very dark outside and KI only sees the reflection. KI chases BLACK ROSE to the alley. He sees CHU who has just bought some night-food instead. KI has no alternative but to tell CHU that he is a cop who is assigned to arrest BLACK ROSE. He asks CHU to keep this secret for him. SZE is set free . FONG accompanies SZE to see the doctor. She misunderstands that SZE has suffered from a fatal disease. SZE takes the chance to cheat FONG money. FONG and CHU work in the nightclub and gets their salary in advance. They are forced to work. SZE and KI hurry to the nightclub to rescue them.

The fact that SZE has not suffered from any fatal disease has been disclosed. FONG is so angry that she cried. CHU and KI try to mediate between them. However, master YU spoil their plan. BLACK ROSE appears again. KING blames KI under great pressure. He even forces KUNG to dismiss KI. SZE by chance discovers that KI is a cop. SZE is so angry that he broke up with him. Later, SZE uses KI`s cop identity to scare the loan-shark away as the former is in debt. KI suffers a great blow when he heard that he had been dismissed. He packs his stuff and intends to leave Art Garden. FONG`s younger brother, MING, admires PEGGY. He then goes to the police station with CHU to search for KI. CHU finds that KI is wandering in the street and is very depressed. CHU knows that KI has been dismissed because of the diamond, thus, CHU returns the diamond to KI and KI resumes office.