The story begins with Rebecca preparing for a date with a guy named Ben, whom she met the other day. Rebecca’s wall is plastered with romantic movie posters, romantic quotes, and posters of her celebrity crushes. Her bookshelves are filled with romantic novels. On the bus, she reads Nicholas Sparks’ A Walk to Remember. She meets Ben at the movie theatre, and Rebecca insists on watching a romantic movie. Rebecca’s over-enthusiasm while watching the movie annoys Ben, and he ends up walking out of the movie. Rebecca looks like she’s going to chase after him, but she decides to finish the movie instead. Rebecca then goes home and crosses Ben’s name off a very long list of boy’s names.
The next day, Rebecca attends volleyball training with Faith, her best friend, and the coach announces that they have to qualify for Regionals to be scouted by a University Varsity Team to get into an athletic scholarship. The coach talks to Rebecca privately and tells her that she is a regular on the team because of her talent, and if she wants to be good enough for the scholarship, she has to work hard, too.
After their practice, they stay in the locker room and Rebecca tells Faith all about her failed date. Faith cuts her off and reveals that she is cheating on Nick, her boyfriend, with Tyler, a guy she met in an online chat room. Rebecca isn’t happy about Faith lying to Nick, because Nick is also one of her best friends. Faith tells her that she will deal with Nick later, so Rebecca should keep her affair with Tyler a secret. She then encourages Rebecca to find a potential boyfriend online. She announces that they are having a sleepover that night for Rebecca to do so. Before going home, they watch Nick play football with his team. He never scores goals, but he’s always the player to pass the ball to the person who scores the goal.
Later that evening, Rebecca joins a chat room website and creates a personal profile, which she can send out, if she wishes to, to guys who express an interest in her. After encountering many mismatches, she sends out her profile to a guy named Elliot. It turns out that Elliot isn’t interested in Rebecca’s type at all. With Faith’s help, Rebecca creates another profile on the website which matches Elliot’s ideal girl. She introduces that profile to Elliot as her twin sister, Camille. Elliot shows genuine interest in Camille.
Elliot asks Rebecca to personally introduce Camille to him. The night before they meet up, Rebecca practices being Camille. When they meet up in a mall, Rebecca has to take turns acting like both herself and Camille. She has to change her clothes and hairstyle every time Elliot wants to talk to either of them. Even though Nick was not originally in on the act, he helped her manage to last the whole day without Elliot suspecting anything. Elliot grows even more interested in Camille and asks to spend more time with her without Rebecca.
For the next few weeks, Rebecca and Faith gets obsessed in making all of Camille’s dates with Elliot perfect. She even models their dates from ones in movies, like the scavenger hunt from Amelie, and a picnic in the meadow from Twilight. Rebecca once bumped into an acquaintance, but she managed to evade him without Elliot noticing. She watches movies with Elliot that she thought would never have an interest in, like The Avengers, but she ends up liking it. She also invites Elliot to her birthday party next month. Nick voices out that he doesn’t like the idea of tricking Elliot, but he decides not to pursue the subject further because Rebecca looked so happy.
Due to spending too much time with Elliot, Rebecca misses a lot of volleyball practice. On the day of the match, she arrives late, and her team barely qualifies for the Regional Championship. She decides to sort her priorities out. She begins to spend more time training for Regionals, but she still spends some of her time with Elliot. She starts to have a more realistic...