The Edge of Righteousness(龍兄鼠弟)

LUI MAN FUNG (MAN TSE LEUNG) is a top neurological surgeon, a very earnest and resolute type who will try to achieve his goals by hook or by crook. Because of his character defects, he has been on bad terms with his family. Even his girlfriend YIP MAN (HSUAN JESSICA HESTER) is worried about his raging temper. The relationship between the pair therefore involves frequent quarrels and arguments. Eight-year-old NG SIU TUNG (CHENG PAK LAM) has been suffering from brain cancer. Wishing for a medical cure, he follows his uncle LUK AH CHOI (CHEUNG WAI KIN) to the United States to seek consultation treatment. By chance LIU comes across NG's letter to Santa Claus. He feels for the child and offers to help him realize LUI decides to operate on NG regardless of the hospital's policies and procedures, for which he is disqualified from practicing as a doctor. LUI returns to Hong Kong and is put up at LUK's home. On LUK's recommendation, he gets a job with Chang's Pharmacy Company, which leads him to a shocking discovery later on. LUI suspects that the owner of the pharmacy CHANG TANG (CHENG JUT SI) may have something to do with a murder that happened ten years ago. To find out the truth, he has set off a wave of disturbances.....