Story: Guangzhou is in a state of political turmoil
in the 1930s. Gangsters go on the rampage; opium trading is rampant
too. Seeing the huge profits illicit opium trading brings, the government
has established the Anti-Smoking Bureau under the guise of suppressing
opium. Gang kingpin CHENG LONG-KWAN (Yueh Hua) heads the bureau. His
eldest daughter CHENG KAU-MUI (Tang Shui Man) returns from Shanghai
so that she too can take a share. MUI is an unscrupulous person who
meticulously plans her every move. LAU SING (Lai Yiu Cheung) is the
leader of the Criminal Investigation Team. He has worked hard all
his life to bring an easy life for his family, especially his bed-ridden
younger sister LAU CHING (Fala Chen). Despite his hot temper, he values
friendship and brotherhood more than anything else, to the point that
he once almost sacrifices his life to help his team member TONG KAT
(Pierre Ngo), who is a timid person.It is fate that MUI and SING should
meet each other and survive many calamities together. It is also fate that they are like natural competitors who will never give in. Mutual understanding
and affection grow slowly between them. Later, the Japanese army comes
and Guangzhou falls into the hands of the Japanese. MUI enters the
darkest time in her life when her aunt CHENG LONG-HEI (Susan Tse)
frames her up. Fortunately, SING is always by her side