Meet Belle, a high-priced high-class prostitute who describes her life and her adventures. She meets with her clients and runs into some problems when she breaks her own rules.
Belle is invited to the most prestigious adult party in the country, however her client doesn't want to join the action. So she tries to get rid of him just to engage with a couple she just met - however her personal life gets in conflict with that.
One of Belle's favourite clients has booked her for the entire night. However she feels bored when her client falls asleep and searches for a new adventure.
When a client, who is also her accountant, asks her to experiment with S&M, even Belle's eyes are opened! Hannah's best friend, Ben, suddenly springs on her the fact that he is getting married.
Belle works for her favorite client together with another girl. When he dumps her for the new girl she's upset and calls Ben. He is still struggling from finding out about her secret identity.
For once Belle might end up with a nice guy instead of a client. But will it work when Belle meets a guy and not Hannah?
Belle has a couple as clients who want a foursome, so Belle has to find a man to help out. Belle's problem: she doesn't have that many friends she could ask for such a favor.
Belle is offered a once in a lifetime opportunity to become more than just a regular prostitute. However what effect will her career change have on her life?
A journalist tries to blackmail Belle after he spots her with a client who turns out to be a politician. She also finds trouble in the form of Bambi, a girl with aspirations of becoming a high-class escort.
Bambi runs into some trouble at work and Belle is considering her future, but first she agrees to go on a date with Alex.
Belle struggles with having a relationship. If that wouldn't be enough already, she runs into trouble at work as well when the wife of a client shows up.
Belle has a professional crisis. During a disastrous threesome with Bambi and a flashy nightclub owner, Belle freezes. She just can't go through with it. Why? She meets up with Ben and spells it out - she is in love with Alex. How can she ever work again?
So it's decided. Today is the day that Belle will finally come clean and tell Alex what she does for a living. She can't face lying to the man she loves any longer. The results are explosive.
Belle is filling her days - and nights - with work as she tries to get over breaking up with Alex. So she's only too ready to accept an invitation to a sex party at a remote country manor house but then things turn nasty.
Belle's night of passion with Ben has only confirmed to her that she needs to make a go of her relationship with Alex. She begs him to try again, ditches all her call girl paraphernalia and gets a job as a temp.
In the series finale, Bells is contacted by her old Madame for one last job. The client is adamant to have Belle and is willing to pay a high sum for her services. Meanwhile, Hannah has no luck in finding a job, and Ben tries to convince her to write about her experience.
Billie Piper meets the real Belle de Jour, Dr Brooke Magnanti in an intimate and revealing conversation about her time spent as a high class call girl. In her first full length television interview Brooke discusses her reason for becoming a call girl, her clients' bizarre requests and her motivation to reveal her identity after six years of anonymity. The show also gives viewers a chance to see footage from the forthcoming third series of the drama inspired by her story. Billie gives Brooke the chance to talk openly about her work as a prostitute, and Brooke explains how it felt the first time she met a client, some of the outrageous scenarios she was involved in and finally her decision to give it all up to concentrate on becoming a bestselling author and a research scientist. Billie and Brooke also discuss the accusations directed at them for glamorising prostitution.
In the Season 3 premiere, Belle's book is a success but she worries about having enough material for a follow-up tome. Belle's sister Jackie shows up on her doorstep needing a place to stay after leaving her unfaithful husband.
Belle tries to broaden Jackie's sexual horizons by taking her to a fetish club, with surprising results. Blocked in trying to write another book, Belle seeks support from her editor, Duncan.
The sexual attraction between Belle and Duncan heats up over a late-night chat session, while Jackie wants her sister to accept that she and Ben are now a couple, and Bambi ignores Belle's warnings and falls for a handsome client.
Belle provides sage counsel to Ben regarding his failing relationship with Jackie, and to Bambi over her romance with her client, Byron - but she promptly ignores her own rules with Duncan.
Belle resists the notion of a serious relationship with Duncan until Bambi announces that she and former client Byron have become engaged.
The first meeting of Duncan and Ben does not go well, leaving Belle facing a dilemma: which man should she choose to keep in her life?
Belle investigates the other side of the bed by hiring a male escort and experiencing the client point of view, but feels guilty about "cheating" on Duncan - whom she does not realize employed Bambi's services earlier in the evening.
In the Season 3 finale, the secret tryst between Duncan and Bambi is revealed at the latter's wedding, leaving Belle heartbroken but providing fodder for her new book's final chapter. Ben reveals his true feelings at the eleventh hour.
Belle deals with a new business proposition, an uninvited house guest, a challenging client and the all-important question hanging over her head: should she commit to best friend Ben?
Belle struggles after the reality of being a girlfriend, a chaperon and a high-class escort hit home, and when she meets Ben's mother there is an even bigger shock in store for her.
Belle's ability to separate work from pleasure is tested when she meets an alluring and dangerous new client. Meanwhile, Poppy's curiosity gets the better of her.
Belle tries to help Poppy come to terms with the recent revelations, but Poppy has other ideas. A cruel trick by dominatrix Charlotte leaves Belle holding the 'baby'.
Belle travels to New York City to oversee production of the movie based off of her books, but thing don't go as she expects.
Belle arrives home from New York to a nasty shock that leaves her in a fighting mood, so she unleashes the closet wrestler in a client and confronts dominatrix Charlotte. Relations with Ben hit a new low.
Belle throws herself into a vampire role play, but the appointment comes to a sticky end. Belle and Ben are still frosty with each other, while the predatory Harry and minx-like Poppy are still on the scene.
Belle finds herself in turmoil after Ben asks her to give up her job. She finds her life further complicated with Harry being around and one of her clients who looks familiar.
Bambi plans out her career and future.
Both Ben and Bambi reveal what they think about Belle.
Bambi enjoys the gift of getting.
Ben teaches us how to make his favorite cocktail.
Bambi shares some of her unique experiences.
Ben questions himself after cheating on Vanessa.
Bambi asks Belle for advice on a quick way to end her appointments with clients.
Bambi is interviewed by a journalist.
Interview with Billie about her career in music and acting. Segments include: Billie on Singing, Billie on Music, Billie on Computers, Billie on The US, Billie on British TV, Billie on Belle, and Billie on Her Audience.
