After a failed relationship and an unsettled teaching career, Sara Barlow returns to her childhood home in Arlington, Virginia, hoping for a fresh start. But when she applies for a job at her old high school, she spots in the gymnasium the man she suspects was involved in a classmate’s violent death a decade earlier. Haunted by the past, Sara confronts the memories she’s spent years trying to suppress: her sister Suzanne’s fatal car crash, her secret summer with the reckless Devlin Barrie, and the anonymous 911 call she made after witnessing what she believes was a murder. As the construction of Interstate 66 physically fractures her community, Sara grapples with emotional fault lines of her own --- guilt, silence and buried truth.