Charlotte was just a girl in Australia writing fanfiction about her favorite Jonas Brother, Joe Jonas. Until one day, she got a message from a subscriber named Joanne. Little did Charlotte know, it was actually Joe Jonas. The two became friends and grew close, with Charlotte telling "Joanne" all her secrets, and both of them gushing about the Jonas Brothers all night long. But how long can Joe go on pretending that he is a teenage girl from New Jersey obsessed with his own band? What happens when Joe starts to develop feelings for this girl as he learns more and more about her?