The crooks in London know how it works. No one carries guns and no one resists the police. Then a new gang appears that go one better. They dress as police and steal from the crooks. This upset's the natural order of the police/criminal relationship and the police and the crooks join forces to catch the IPOs (Impersonating Police Officers), including an armored car robbery in which the police must help the gangs to set a trap.
故事讲述了一个名叫龙的作家虚虚实实的一生。龙是一个孤儿，经常梦见自己是一条迷失了家的鱼，并把梦写进了他的作品，同时映射了他一生都在寻家的路上，即使后来也没找到自己的身世，却在爱情里找到了属于自己的家。
