Like every morning, Gaëtan (Mike Hilton) waits for his bus to go to work in the city, while texting with his best friend Alex and watching videos on his phone. As soon as he spots Shelly (Mariska), his heart skips a beat and he starts to lose his composure. On his end, Alex is amused by the situation and makes it clear that Gaëtan will have to make a move sooner or later. Usually, Shelly drives to the city, but for the past few days, she’s had to take the bus while her car is being repaired. Gaëtan is surprised it’s taking so long, and even more so when she confesses that she wanted to take the bus one last time, “so she wouldn’t have any regrets.” The young man is usually quite shy, but the presence of this woman he barely knows fascinates him. Normally, he would go for women his own age, but Shelly has a unique aura. For her part, she doesn’t seem indifferent to his quiet charm. After chatting about everything and nothing to pass the time, they end up sitting next to each other on the bus. That’s when Gaëtan understands what Shelly meant when she spoke of regrets. Even though they hardly know each other, she asks him what he would do with her, right then and there, among the other passengers. After he replies, without hesitation, Shelly tears her tights and starts touching herself in front of him, before asking him to return the favor. This highly unusual ride will only be the beginning of an adventure into pleasure. Shelly is the director of a communication agency. Today, she has to finalize a file for one of her clients and, against all expectations, she offers Gaëtan to come help her. A little surprised by the offer, he ends up calling his boss to say he won’t be coming to the restaurant today, pretending he’s dealing with water damage at home. Upon arriving at the office, he meets Sophie (Alice Martin), Shelly’s assistant. A few minutes after their arrival, Shelly calls him into her office. While he thought they would go over his translation progress, he discovers that his boss-for-a-day has something entirely different in mind. After the bus foreplay, he realizes that the office can also become a place to fulfill equally exciting fantasies though he doesn’t realize Sophie is watching them. For Shelly, true pleasure only comes when she dares to seek it out in situations that push her beyond her comfort zone. As for Gaëtan, far more used to one-night stands, he realizes this woman has taught him more about desire in a single day than all his past partners combined. Back at the office after lunch, Shelly suggests trying something new by inviting her assistant to join them. After this emotionally intense day, Gaëtan is surprised to learn that Shelly is married, and that she fully intends to tell her husband everything when she gets home tonight. On the return bus ride, Gaëtan catches the eye of another passenger (Eve Sweet) who smiles at him. Could this be the beginning of a new life for him?