In the quiet town of Lebanon, Pennsylvania, June 1984, 14-year-old Donnie Morris hides behind a deadpan mask and hand-me-down clothes, concealing a chilling secret: he harbors violent urges and intrusive thoughts of bloodshed. When lively newcomer Amber Solana befriends Donnie, she unknowingly disrupts his isolated existence. As their friendship deepens, Donnie's inner turmoil escalates, driving him to covertly act on his darkest impulses. One by one, his classmates meet gruesome fates, their deaths shrouded in mystery. Narrated from Donnie's perspective, the story unfolds with unsettling intimacy, capturing his descent into darkness amidst a backdrop of high school dynamics and family tensions. As tensions reach a boiling point at homecoming, Donnie's carefully constructed facade begins to crack, setting the stage for a harrowing climax that will forever change Lebanon. In this chilling exploration of isolation and obsession, Donnie's narrative probes the fragile boundary between sanity and madness, painting a haunting portrait of a town where shadows hide behind every quaint facade.