比利戴蒙德以小偷为生。但当他被警察萨曼莎·华纳中尉抓获时，情况发生了新的变化。
然后她向他提出了一个交易：如果他同意使用他的“技能”，成为旧金山警察局的卧底，他就不用坐牢，可以过上火车的奢侈生活。
比利接受了，条件是他的前搭档肯·西斯科被释放出狱，可以和他一起打击犯罪……
A security man (Weathers) goes to work for a sadistic gangster (Williams) with an alluring wife (McKee). Of course, the wife and the security man immediately hit it off. After the gangster kills a lawyer in front of the security man, the wife and the security man go on the run with hitmen on their trail.
