Mrs K (Kara Hui) is wife to a meek gynecologist (Wu Bai) and mother to a pouty fifteen year-old (Siow Li Xuan), living a peaceful life in a quiet suburban neighborhood. But, as her lightning-fast reflexes might indicate when two hapless burglars get into her house, her past is not as benign as her present. It soon emerges that more than a decade ago she took part in a brutal heist – and her partners in crime (played by directors Fruit Chan, Kirk Wong and Dain Said) are now getting killed one after the other by Scarface (Simon Yam), a dirty cop who played both sides during the heist, and ended up with a bullet in the head from Mrs K. Driven mad by the migraines and sleep-deprivation that resulted from this injury, Sarface kidnaps Mrs K’s daughter and demands a hefty ransom.
