Collection of Wong Jing's Naked series, revolving around trained female assassins.
Kitty (Chingmy Yau) is a vicious young woman who has no qualms about stabbing girlfriend-bullying men in the Penis. Tinam (Simon Yam) is a cop who is undergoing a rather traumatic period: he shot his own brother by accident and as a result vomits every time he handles his gun.
The movie opens with the assassination of a man of unknown identity. A team of three CIA officers, including Jack Chen (Daniel Wu), a rookie, watch through surveillance as a sexy female assassin named Fiona Birch (Marit Thoresen) enters the man's heavily guarded apartment suite and, after having sex with him, kills him by breaking his spine with her bare hands. As she makes her escape in her white Porsche 911 GT3, her car is hit by a rocket. As the officers rush over to extricate her from the wreckage, a woman in a limousine shoots her to death.
The story of Phoenix who was kidnapped, when she was a child, by Madame Rose after killing her family except for Phoenix's father, Interpol agent CK Lung, who is still struggling to find his daughter. Phoenix is now an assassin under Madam Rose's orders, her target was her own father.