After Zack meets his online chat friend Stephanie on a date, they begin dating. He asks her for a large sum of money, then dumps her when she finds him with another woman. Soon after, Zack begins a relationship with Li Ling, who lives with her younger sister, Li Er. While carrying on an affair with Li Er, Zack asks Li Ling for money. Li Ling not only gives him the money but adds him to her will as a beneficiary. When Li Er finds out, she requests that Zack kill her sister, as Li Er blames Li Ling for their mother's death.