麦克斯和Ru这对夫妇乘坐飞机前往旧金山旅行，飞行途中丈夫阅读乔诺博士撰写的著作《Forensic Science》，麦克斯对其中关于十二宫杀手的论述部分十分着迷。少顷飞机降落，夫妻二人走出机场，却没有等到来接站的朋友莱斯利。这时一辆私家车停在他们面前，司机自称是莱斯利的朋友，因对方临时有事而代替朋友前来接站。妻子毫无防备地上了车，而麦克斯却还未从探案气氛中抽离出来，他觉得眼前的司机如此可疑，很可能就是传说中的十二宫杀手。
刚刚还是阳光普照的旧金山，突然间狂风大作，暴雨倾盆，麦克斯夫妇的心情也跌到了谷底……

Angel, a selfish rotter is hanging around in a local bar, groping the wife of the barman and dealing with weapons. One morning he wakes up finding a pair of wings growing at his back. These wings do good deeds against his nature. But suddenly he finds himself fighting those who want these wings for their own dark plans.