Evan Hansen, a high school teenager dealing with the issues of his anxiety, as well as dealing with a broken hand, is assigned by his therapist to write himself a few letters starting with "Dear Evan Hansen: Today is going to be an amazing day and here's why." But a moment he meets a troubled kid named Connor Murphy who sees the letter by accident and shoves Evan to the floor, thinking that Evan is thinking of Connor's sister in a. . . . provocative way. But later, Connor takes his own life and that deals on a heavy toll on everyone at school, including Evan and Connor's family. After Connor's parents find the letter they think Connor wrote it to Evan, they want to find out if he was friends with him. Not knowing what to do, Evan starts to sympathize with the Murphy's and starts coming up with lies that he knew Connor so well as best friends. Soon, everyone starts to sympathize for both Connor and Evan. Soon, nearly everyone that Evan loves closely as friends and family start to realize that he's been lying about his friendship with Connor, and now Evan has to deal with the heavy guilt that he has done just for wanting to find a chance to belong.
