The plot tells of how an armed robbery takes place on the bus line connecting the airport with various cities in the vicinity of Barcelona. The upshot is that three assailants are dead and one person has an arrest warrant on his head, with six witnesses unable to identify the fugitive. Officer Fran Garza (played by Pablo Molinero) and his professional partner – and ex – Rebeca Quirós (Ana Polvorosa) suspect that the witnesses are not telling the truth: they all claim not to have seen the killer’s face, but everything points to them having made a pact of silence to protect the person on the run. Soon enough, the case goes viral, and public opinion swings in support of the criminal, using the hashtag #YouWouldDoTheSame.半年后，她却要杀伐决断，却要一声令下，流血千里，却要亲手用自己纤嫩的手掌，做出来残酷的事情，让无论是属下还是敌人，都知道，面前的人就是楚阎王！