After 3 murders are committed in Star City, Detective Frank Brody and his team must stop a serial killer before he strikes again. However, the connection between the 3 victims could hit close to home. It’s a race against time, as Detective Brody has less than 48 hours before the suspect kills again....
人类和众多外星种族共同生活在一个名为千星之城阿尔法的繁华星际大都市，数百年来，千星之城阿尔法成为各族群和平共处的美妙天堂，它繁荣昌盛。韦勒瑞恩（戴恩·德哈恩 Dane DeHaan 饰）和洛瑞琳（卡拉·迪瓦伊 Cara Delevingne 饰）被选择成为阿尔法的守护者，他们俩是警卫部的执行人员，被任命去拦截一种稀有物品的交易。这种稀有物品与一个本该在数十年前就消失的稀有族群存在神秘的关联。然后他们来到了巨大的千星之城阿尔法城，这时他们的指挥官Arun Filitt（克里夫·欧文饰）在指挥中心遭到绑架，这对搭档开始意识到手中物品的不寻常价值。二人追寻凶手，发现自己身陷一场正在发酵的星际事件中……...
