Secret Diary of a Call Girl - Season 4 (2011)

Belle postpones a trip to New York to meet the director of a film based on her book to accompany Poppy on a prison visit to Stephanie. Mother and daughter merely end up rowing. Despite taking on one of Charlotte's clients, a middle-aged man who like to dress as a baby,Belle takes the moral high ground when she catches Poppy in bed with a boy she picked up in a bar. This leads to an argument with Ben and Belle taking the next plane to New York.

Belle lives it up in New York where the female star and male producer of her projected film adaptation get a little too carried away enacting the scenario. She misses Ben and the feeling is mutual as he fights off the attentions of Poppy, whom Charlotte has tried to recruit as a call-girl. Belle is ultimately appalled that the finished screenplay of her book is no more than cheap, shallow porn and returns to England.

Belle returns from America to find Charlotte running the business. Furthermore Poppy has climbed into bed with Ben,giving Belle the wrong idea. She immerses herself in work,pleasuring a Japanese client who likes wrestling as well as winning back star client David from Charlotte. She also wins back Ben after Poppy admits he was innocent but this leads to him accusing Belle of double standards.

After Poppy has moved back to her mother's house Belle goes to a hotel for a vampire role play with film critic Ambrose but he literally dies on the job. In a panic Belle rings Ben but,after their recent cooling off,he has accepted a platonic date with Poppy. The appearance of Harry provides Belle with a shoulder to cry on but she resists his advances and returns to Ben.

Belle has an awkward session with a client who recognizes her from school and a post-coital chat with him leads her to ponder her future. At a party given by Stephanie to celebrate her release Belle meets Harry,who wants her to move in with him but she refuses. She also turns down Ben's proposal,explaining that he is too good for her and that first and foremost she is a career girl.