In high school Evan attends a bonfire with his best friend Dylan and his soon-to-be obsession Amber. A week later the two most important people in his life are Amber moves out of state and Dylan's parents send him to "The Camp," a fundamentalist Christian rehab center designed "to scare the other Adam out of him." Years later, Evan returns home for his father's funeral where he finds Amber visiting for a few days and Dylan a few doors away, uncured and unhinged. All three are invited to a second bonfire—a chance to remake the past or realize the risks in becoming ambassadors to it.