Secret Diary of a Call Girl - Season 4

Hannah is back from her trip and moves into a new townhouse, and Belle 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.

Has Belle taken on more than she can chew? As the reality of being a Madam at the agency, a girlfriend to live-in boyfriend Ben, a chaperone to Stephanie's daughter Poppy and a high-class escort hits home, Belle struggles. And, when she meets Ben's mother, there's an even bigger shock in store...

Belle meets with a new client who has a passion for public sex, while Poppy finds out some uncomfortable truths about Stephanie and Belle. Hannah's sister Jackie makes a surprise visit which causes some awkward moments.

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

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.

Hannah returns to London and finds Ben and Poppy sleeping in the same bed, giving her 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's vampire roleplaying client dies during the session. Hannah and Ben are still fighting and are tempted by new partners.

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