Ho Pui-lan was the secretary of the writer Wu Him, but she died suddenly at home. Ho's mother commissioned private detective Chan Kin-chau to investigate and found out that Pui-lan and Him were having an extra-marital affair, and also discovered that the contents of Him's fiction were similar to the contents of Pui-lan's suicide note. When Kin-chau finds out that the contents of Him's fiction are similar to the contents of Pui-lan's suicide note, he and Pei Lan's sister Yuk-lan reenact the murder case, and Him is stimulated and hallucinated to reveal the truth of the murder...
as Chan Kin-chau
as Ng Ying-lin
as Ho Yuk-lan
as Police Sergeant/ Cheung Yu-shing
as Wu Him
as Mrs Wu
as Ho Pui-lan
as Chan Kin-chau's assistant/ Fuk the Shortie
as Ho Pui-lan and Yuk-lan's mother
as Goon
as Waiter
as Servant
as Truck driver
