Seventeen-year-old nurodivergent and nonbinary Lark pretends that they are the creator of a viral thread that their ex-best friend, Kasim, accidentally posted onto their Twitter account, declaring his unrequited love, but living a lie takes its toll on Lark, forcing them to deal with their own messy emotions.

Lark Winters wants to be a writer, and for now that means posting on their social media accounts––anything to build their platform. When former best friend Kasim accidentally posts a thread on Lark's Twitter declaring his love for a secret, unrequited crush, Lark's tweets are suddenly the talk of the school—and beyond. To protect Kasim, Lark decides to take the fall, pretending they accidentally posted the thread in reference to another classmate. It seems like a great idea: Lark gets closer to their crush, Kasim keeps his privacy, and Lark's social media stats explode. But living a lie takes a toll—as does the judgment of thousands of Internet strangers. Lark tries their best to be perfect at all costs, but nothing seems good enough for the anonymous hordes––or for Kasim, who is growing closer to Lark, just like it used to be between them . . . In the end, Lark must embrace their right to their messy emotions and learn how to be in love.