Reid MacGregory can’t imagine her life without her best friend and social anchor, Hattie Darrow. It’s the summer before senior year, and Reid is deeply embedded in Scofield High’s popular crowd, courtesy of Hattie. However, when summer arrives, Hattie heads to her family’s Maine island home, leaving Reid and their friend, Sam, with a plan: to embrace every moment, one party at a time. Just as the senior year seems promising, Reid’s world shatters when she learns of Hattie’s shocking suicide days before her return. Driven by an urgent need to uncover the truth, Reid delves into the mystery, grappling with painful revelations about the person she thought she knew inside out.