Billie Piper stars in ITV2's drama Secret Diary of a Call Girl. It's the sexually explicit story of a beautiful prostitute who leads the ultimate double life. / To her parents she's Hannah, the legal secretary. Hannah has a responsible job that involves working lots of unsocial hours in the evening. To her clients Belle is…whatever they want her to be. She can be the quiet girl-next-door. Or she can be the high-heeled dominatrix who whips them into submission. Her mission is to make money by satisfying male fantasies. (Source: ITV) Currently 8.9/10