HUNG TIT leads his colleagues to trash the sign-boards of brothels in Shanghai Street. SUN is in the crowd and he nags at TIT. TIT is angry and argues with SUN. To protect the image of the police force, FAN stops TIT.

TIT and FAN go to the club but TIT is recognized by a prostitute. FAN has to make a new plan. TAK, the owner of the club, finds PING to check FAN`s identity. Knowing that FAN is not introduced by his customer, TAK instructs KING to play table-tennis with FAN. He even sends people trounce FAN so as to see whether he is a policeman or not.

KWAN leads FAN to a hotel. There KWAN changes her mind and does not want to serve FAN. In chaos, FAN`s colleagues arrive and bring KWAN to the police station. She accuses FAN having inordinate ambitions on her.

Though TAK is arrested, he refuses to admit the accusation. FAN goes to MAY`s boutique, hoping she can forgive him. There he meets a prostitute who asks him to give her discounts. MAY is angry.

KWAN grasps a chance and runs away. TIT finds her and gives her protection. TAK changes his mind and accuses FAY for the police. He asks KWAN to get the account book for him but KWAN is discovered by FAY.

Through ANITA, PAUL wants to hire HUNG as his secret lover. However HUNG refuses to accept the arrangement. She does not want to be involved in the filthy business. FUNG finds that LUI is investigating HUNG. She questions FAN and FAN admits that they are suspecting HUNG. FUNG is surprised. ANITA spreads fake news to frame HUNG. HUNG is frustrated and at last she promises to accompany PAUL. PAUL invites HUNG to go launching with him. On board he tortures HUNG and in chaos, HUNG falls into the sea. HUNG is saved but she refuses to accuse PAUL. TIT and FAN have to find another one to help them.

KAM finds PIK`s statement and learns that she has a bill of tens of thousands. She scolds PIK. PAUL complaints that he is annoyed with TIT and FAN`s investigation work. FUNG just follows the routine work to question FAN.

PIK is invited by ANITA to take the model training course organized by her model agent company. KWAN gets the permit to stay in Hong Kong. She works in a sauna centre. As she wants to be rich, she invests in the stock market. TIT is unhappy as he thinks that KWAN is a materialistic girl. KWAN is depressed.

LUI stays in the training course and is arranged to take photographs in swimming suite. KWAN loses money in the stock money and owes loan sharks a lot of money. She seeks help from TIT.

KITTY brings PIK to meet clients. The client gives PIK a few thousand dollars and this flatters her. FUNG witnesses HUNG being entangled in the karaoke. She brings HUNG to the peak to talk. HUNG promises to correct her fault.

KEN has HUNG`s permission to marry her. When he knows that she was a prostitute, he changes his mind. FAN tells FUNG that HUNG`s being raped has been recorded. FUNG convinces HUNG to be the witness. FAN admires FUNG`s character and attitude.

FAN drives FUNG home and on the way they see a young woman kill herself by jumping down a flyover. The newspaper headline draws the public attention. It states that the young woman was a part-time prostitute. LEE orders FAN to investigate the case.

FAN and his colleagues check BIU`s brothel. PIK is kidnapped by a loan shark and threatens KWAN to pay the debt. TIT saves PIK and promises to pay the debt for KWAN. KI suspects that he has AIDS. However he dares not tell his wife YIN. However YIN knows his problem at last.

TIT urges KWAN to return his money. One day KWAN and PIK go to the supermarket. She is knocked down by LUNG. She is angry and argues with LUNG. She even claims that she knows LUNG.

TIT checks the sauna house in which KWAN works. He realises that KWAN does not sell her body. FAN and FUNG practise mahjong playing. KAM suspects that they are tricksters.

SIN leads FUNG to meet her customer in a hotel. FAN follows them. However FAN loses their trail at a road junction. Luckily he finds the hairpin left by FUNG intentionally. FAN saves her just in time. At last the gang of prostitutes is broken up.

FAN has the courage to disclose his love in front of FUNG. FUNG accepts his love. FAN is afraid that his plan will be leaked again. He changes the lighting system and asks his colleagues to park their cars irregularly. He is aware that NGAN shows much concern of their work. He changes his route and manages to find some young girls working in LUNG`s nightclub. The police accuse LUNG.

NGAN changes his statements in the court and LUNG is set free immediately. LUNG claims that his massage saloon will not be changed into a brothel, KWAN`s colleagues suggest her to stay. KWAN cannot make up her mind.

TIT goes to interrupt LUNG`s business. He is angry to see KWAN serving LUNG and scolds her. Listening to WONG`s advice, TIT sends flowers to flatter KWAN. KWAN is excited. FUNG has to receive surgery treatment and it is dangerous. Luckily she manages to overcome the problem with FAN`s encouragement. She gradually recovers.

LUNG seeks advice from KWAN on the opening of new massage saloons. She cannot meet TIT in time. FUNG arrests TYSON but he refuses to admit the murder.

FAN provides MAY with temporary accommodation in his house. FUNG pretends that she does not mind. In order to win over KWAN`s heart, LUNG buys a large house for her family. However KWAN cannot drive away TIT`s image in her heart.

FAN wants to tell MAY that he loves FUNG. MAY knows his act in advance and pretends that she is sick. FAN has mercy on her. As FAN`s works are in vain from time to time, he lays a trap and discovers that CHEUNG has betrayed him. CHEUNG wants to run away. He keeps two policemen as hostages. Luckily WONG convinces him to surrender.