Secret Diary of a Call Girl

Belle is back from her trip, moves into a new townhouse, and entertains a young barrister with a "downstairs" problem. She learns that Stephanie is remanded in custody for money laundering. Whilst reluctant to take over the business she agrees to host Stephanie's daughter Poppy, who is innocent of her mother's work. Also, she debates whether or not to give a relationship with Ben another try.

Belle juggles being Stephanie's replacement and handling an awkward virgin client.

Belle meets Detective Harry Keegan who has a passion for public sex, while Poppy finds out some uncomfortable home truths about Stephanie and Belle. Belle's sister Jackie makes a surprise re-appearance which causes some awkward moments between Hannah and Ben.

Accompanying Poppy on a visit to prison, Belle watches as she confronts Stephanie about her secrets, while Belle is offered a movie deal for her best-selling book. Mother and daughter merely end up rowing. Belle takes parental control when she catches Poppy in bed with a boy she picked up in a bar. This leads to an argument between Ben and Belle.

Belle travels to New York City to oversee production of the movie based on her book, but the female actor and male director of her projected film adaptation get a little too carried away enacting scenes. She misses Ben and the feeling is mutual as he fights off the attentions of Poppy, whom Charlotte tries to recruit as a call-girl.

Belle returns to London and finds Ben and Poppy sleeping in the same bed, giving Belle the wrong idea. Furthermore, she find Charlotte running the business. 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.

Belle has a vampire as client, who dies during the session. Hannah and Ben still fight and are tempted by new partners.

Ben asks Belle to give up her job. With the added complication of the attractive and predatory Harry, what will Belle do?