Belle introduces us to her world as a high-class escort living in London. While she enjoys her profession, it's top secret from everyone in her personal life - even best friend Ben thinks she's a night time legal secretary. Belle explains there are several rules to follow if you want to succeed in this business, but number one is to keep the two identities - Belle and Hannah - completely separate.

New client Aleksandar takes Belle to a prestigious sex party - a very glamorous event that Belle has wanted to attend for some time. While there, Belle is distracted by the writer Jay Lorre, a longtime crush who wants her to go home with him. Just as she ditches her client for him, she receives a call from her family to meet them at the hospital where her sister has just given birth. Belle heads straight to the hospital and quickly explains away her inappropriate attire to her family, but Ben is not entirely convinced.

Belle informs us that after sex toys, the most important piece of equipment is a watch for "all-nighter" bookings. Upon satisfying her client, Belle gets stir crazy and heads down to the hotel bar for a break where she is approached by a man who wants to book her immediately. Can she risk two-timing her client? With the help of a friend working the front desk, she decides to risk it but the new client's sexual stamina could keep her from returning to the old client's bed before he awakes.

Ben confesses to Belle that he has proposed to his girlfriend, Vanessa. Belle's hurt; he's been keeping the engagement from her for weeks. When a good client, who happens to be her accountant, tells her he'd like to try S&M, she hires a professional dominatrix to show her the ropes - literally. Finally, Ben and Belle meet up to discuss the growing tension between them. Ben doesn't know why he should tell her everything when she clearly tells him nothing. Belle begins to doubt the closeness of their friendship and struggles with the idea of entrusting Ben with her secret.

An awkward distance is created when Belle reveals her secret to Ben who is hurt that she never told him and is ultimately confused by what it all means. Belle has a threesome booking that day - Ashok, her regular client, has decided he wants two girls this time. Belle is nervous to work with another female because she tends to not get along with women very well. However, much to Belle's surprise, she immediately hits it off with Naomi, who is an older, seasoned escort and Ashok is in heaven. Unfortunately, the connection between Naomi and Ashok is a little too good and Belle finds herself dumped by her favorite client and shafted by her new "girlfriend."

Belle receives a bad review on the internet and, as a result, her client list drops off significantly. Since work is scarce, she accepts an abnormal midnight booking from a seemingly ordinary guy who turns extremely creepy. Shaken by the situation, Belle heeds Ben's advice and takes time off from work. After a rare one night stand with a guy she meets at a store, she realizes the break has shown her how much she likes her work. She just hopes the negative effects of the bad review will wear off soon so she can return to making money.