Seventeen-year-old Evan Hansen (played by Ben Platt) grapples with severe social anxiety and depression, making it tough for him to find direction in life. To help him cope, his therapist, Dr. Sherman, suggests a method: writing letters to himself, outlining the reasons why each day could bring something positive. Following the advice from his mother, Heidi (played by Julianne Moore), Evan is encouraged to have his classmates sign his cast after breaking his arm in a tree fall, hoping this might foster real connections. At school, he writes a candid letter, reflecting on his desire for notice and connection, pondering if anyone would care if he simply vanished into thin air: > “Waving Through a Window.”
The situation takes a turn when Connor Murphy (played by Colton Ryan), a fellow student, reacts angrily after discovering Evan's letter, especially since he believes that Evan has feelings for Zoe (played by Kaitlyn Dever). Connor storms off with the letter, leaving Evan feeling lost and confused. Just three days later, Evan is called into the principal's office and learns about Connor's tragic passing. Attempts to clarify misunderstandings fall short as the letter is misinterpreted as a suicide note meant for Evan, with Connor's name tragically sealing their erroneous belief.
In the wake of Connor's death, Evan receives an invitation to the Murphy family's home for dinner, where he feels pressured by Cynthia (played by Amy Adams) and Larry (played by Danny Pino) to share stories about their late son. Under the weight of their grief and expectations, Evan ends up fabricating a tale, claiming he broke his arm while out exploring with Connor in an orchard. The Murphys had previously visited this same place, leading Evan to invent details that seem more believable: > “For Forever.” Seeking to reinforce his deception, he enlists the help of Jared (played by Nik Dodani), a family friend, to create false backdated emails that would back up his lies ("Sincerely, Me"). Zoe struggles with her feelings about Connor's suicide note, especially since her name was mentioned, and reflects on her own memories and experiences: > “Requiem.” All the while, Evan finds himself expressing his feelings about Zoe, masking them as if they originated from Connor: > “If I Could Tell Her.”
Amidst this chaos, Alana Beck (played by Amandla Stenberg), a classmate who experiences her own share of social difficulties, starts "The Connor Project," aimed at honoring Connor's memory. Their efforts lead to a significant assembly where Evan speaks openly about his feelings of loneliness and his fictitious bond with Connor, retelling the orchard story that he had fabricated. His heartfelt address gains tremendous online traction, becoming a hopeful message for individuals confronting mental health challenges: > “You Will Be Found.” Touched by the outpouring of support, Zoe thanks Evan for helping her family heal during this trying time.
As Evan and Alana's crowdfunding initiative for The Connor Project begins to thrive, the mission to revitalize the orchard takes precedence over other essential aspects of their lives. Evan's bond with his mother and his therapy sessions suffer as he becomes increasingly entangled in the lives of the Murphys. One significant night, Zoe confesses her feelings for Evan, prompting the start of a romantic relationship: > “Only Us.” Meanwhile, Heidi's unforeseen visit to the Murphys for dinner sets off a series of events that lead to unforeseen consequences.
With growing tension, Evan faces a dilemma between his allegiance to Alana and the deepening connection with Zoe. In a heartfelt email, he reveals to Alana the truth behind his therapy letter, disclosing that it was actually Connor's suicide note. This revelation causes a tumultuous backlash online, with people questioning why Connor would confide in Evan over his family. Despite the outcry, Alana is compelled to delete the letter, although not before it spreads uncontrollably across social media.
As the truth slowly comes to light, Evan is left stunned by the repercussions of his choices. Burdened with sorrow, he confesses to his mother that his fall from the tree was an unnoticed cry for help. Heidi's emotional apology, where she reflects on absent father's scars, only amplifies Evan's struggle.
In a moment of courage, Evan takes steps to own up to his actions by recording and sharing a video revealing the truth with the world. Standing amid reminders of Connor's cherished books, he begins the journey of healing by reaching out to those who genuinely knew Connor. A poignant video of Connor performing during rehab serves as a testament to his spirit and identity.
Ultimately, Evan finds closure when Zoe returns to the revitalized orchard, a powerful emblem of Connor’s love and passion for life. As they reconcile, Evan writes himself a new letter, committing to be honest and authentic. With a renewed sense of direction, he encourages himself to move onward, embracing the critical life lessons learned from Connor's heartbreaking narrative: > “A Little Closer (Reprise).”
