Sau-chun tells Chung-ying there is another mysterious guy who knows Chun-tung very well. Sun-wai’s daughter is unhappy and runs up to the school’s roof. Lik-kei and Chung-ying go to the scene to offer comforting words. But the duo get entangled in their mutual emotional issues. Chung-ying is moved after watching a clip showing Lik-kei’s display of affection. Lik-kei even tells Chung-ying he loves her. Pik-kei abruptly shows up as the couple become amorous. Pik-kei claims Chi-shing has bruised her. She asks Lik-kei to let her take shelter in his place because she is homeless. Lik-kei helplessly agrees as he realizes she is desperate. Wing-yum is furious when she returns home and sees Pik-kei. Lik-kei and Ho-fan go to see Sau-chun. Ming-kwan finds out what is happening and urges Cheung-lok to take her away. Lik-kei undergoes a makeover and goes to see Chung-ying. But he has to return home early as Pik-kei calls him.
Because of a fatal shooting case, plain-clothes Sergeant Ko Lik-kei runs into a “dull” and “troublesome” witness called Lee Ho-fan. Lik-kei is instructed to protect Ho-fan at all times. Initially, the duo are strangers that cannot stand each other. They then gradually get along. Meanwhile, an apparel company of which Ho-fan is a major shareholder is found to have involved in illicit dealings. Yip Cheung-lok and his son Yip Ming-kwan, who are member of senior management, are associated with these activities. Lik-kei teams up with Ho-fan and Ho-fan’s younger sister Lee Chung-ying, who is a barrister by profession, to investigate. Lik-kei and Chung-ying get entangled in a relationship in the process. Also, Lik-kei’s elder sister Ko Wing-yumand Ho-fan get along sometimes and provoke each other at other times. Fate has brought the foursome together, causing a case that has remained unsolved for more than twenty years to be reopened.
