This ’70s ghost drama began with Wang Jian (Lawrence Ng), a policeman, discovering neighbour Huang Yinggus ghost (Nancy Sit) who has been trapped in a braid inside the police station for over ten years. Yinggu slowly reveals her story to Jian. She was wrongly sentenced to death for a crime she never committed. Yinggus nephew Ye Jiasheng (Eddie Cheung) committed the murder and heartlessly set Yinggu up and made her his scapegoat.
Fate is always ironical and cruel, as Yinggu discovers (despite being a ghost!). She soon gets involved with Ye Jiashengs affairs a second time. First, she manages to persuade her daughter Sun Minghua (Irene Wong) to break off with Ye Jiashengs son Ye Zuguang (Raymond Cho), who is a flirt. Later, Ye Zuguang commits mass murder (locking people inside a building, preventing them escaping from the fire). Minghua is on the scene coincidentally and Jiasheng decides to frame her for the crime.
Wang Jian, by then a police inspector, is in charge of this case and knows Minghua is innocent and Zuguang involved. He tried his best to solve the case, to ensure justice for the dead and innocent (Minghua) but Ye Jiasheng, a senior police inspector, just seems to be too smart and cunning for Wang Jian to deal with. Ye Jiasheng is willing to do anything (framing Minghua, falsify evidence, killing witnesses) to get his son off the hook.
Yinggus ghost finally meets face to face with the arrogant Ye Jiasheng, who isnt even scared and taunts Yinggu saying she ought to blame her sorry fate instead. Justice prevails however, Wang Jian finds new evidence to charge Zuguang with and by then a remorseful Zuguang finally confesses to the crime. Ye Jiasheng dies a sorry death from cancer and Huang Yinggu is assumed to have reincarnated. There is a sub-plot toward the end where Wang Jians wife Baoyan (Maggie Cheung) accepts corruption money from Jians superior who asks her to take on behalf of Jian. Wang Jian finds out and Baoyan decides to turn herself in. The show ends with Baoyan being released from jail and a family reunion with Wang Jian and family.