Mob Sister

Mob Sister is a 2005 Hong Kong action film, directed by Wong Ching-Po and starring Annie Liu as the titular character, Karena Lam, Simon Yam, Anthony Wong and Eric Tsang.

Plot
In the macho triad world where heroes are molded from blood, brawn and brains, what place is there for a defenseless girl? The only exception to the rule is if you earn your respect as 'Ah Sou' - the big boss' wife. Ah Sou tells the extraordinary story of an innocent girl who becomes appointed successor to Hong Kong's ruling triad. This role becomes a double-edged sword for our young heroine, who is sucked into a maelstrom of vicious gang wars, hair-raising assassination attempts and ruthless power struggles and betrayals. Through numerous violent episodes and unexpected reversals, she discovers her own inner strength and re-writes the laws of the triad kingdom.

Cast

 * Karena Lam as Nova
 * Annie Liu as Phoebe
 * Eric Tsang as Gent
 * Anthony Wong Chau-sang as Whacko
 * Simon Yam as Tsan Gor (Chance)
 * Alex Fong Chung-sun as Fa Gor (Buddy)
 * Yuen Wah as Monk Tsang-sau
 * Liu Ye as Heung Tung
 * Liu Kai-chi as Ah Kau
 * Him Law as Little Red Cap
 * Tse Kwan-ho as Nova's assistant
 * Lawrence Cheng as Boss Wang