一名警探在调查一宗毒贩谋杀案时，发现自己身处在这一生最为危险的一个案件中心。她身边的人都没有发现，她就是警方以及杀手都在追查的那名关键证人。

　　After dealing with the repercussions of her actions from last year, DC Lisa Armstrong is given the

After dealing with the repercussions of her actions from last year, DC Lisa Armstrong is given the o