Roselyn Winter's world comes crashing down only two days before the most anticipated day of any girls high school career: prom. She had the perfect dress, the perfect shoes, and the perfect guy, until one phone call changed everything. Although heartbroken, with the help of her mom and best friends, she decides to attend prom alone. On the big day, she is at the mall after getting her makeup done at Sephora, when she runs into her biggest idols - Ethan and Grayson Dolan.