Isla, a high school senior, has always felt different from everyone. She's never been interested in boys the way her friends are, but she's never quite understood why until she meets Sadie, a new student who transfers to her school. Sadie is confident, artistic, and openly gay. Isla is immediately drawn to her magnetic personality and finds herself developing feelings she's never experienced before. As they spend more time together, Isla realizes that she's falling in love with Sadie, despite never having considered herself anything other than straight.