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.
何笑笑（汪小茜 饰）、谢雨桐（王晓莎莎 饰）、方玲（王梦婷 饰）和董乐（戴燕妮 饰）是四位刚刚走出校园踏入社会的年轻女孩，怀揣着共同的演艺梦想，她们开始了各自的奋斗。对于外界流传的种种娱乐圈潜规则和黑暗面，四个女孩均有所耳闻，但自信满满的她们深信自己能够“出淤泥而不染”，凭借真材实料获得成功。 然而，一个意外事件的发生将四个女孩推向了不同的道路，笑笑天真善良，在几个男人之间徘徊不定又遭到上司性骚扰的她能够守住最后的底线吗？雨桐聪明伶俐，随机应变的性格在未来的道路上令她如虎添翼；方玲自尊的同时又充满了自卑，在金钱诱惑面前，她忘记了最初的梦想；董乐因为单纯的个性而遭人利用，又会有怎样的结局在等待着她呢？
