Days after the dawn of Y2K, beautiful, charismatic nineteen-year-old Karlie Richards is found brutally murdered in her campus apartment. Two decades later, those who knew Karlie-and those who just knew of her-remain consumed by her death. Among them is her freshman year roommate, Joy, now middle-aged and mid-divorce, living in the same college town and desperate for a new beginning. When she stumbles upon a twenty-year-old letter from Karlie, Joy becomes convinced the man in prison for her murder was wrongfully convicted. Soon she is diving deep into the dark world of internet conspiracy theorists and amateur sleuth blogs and bouncing off others touched by the long, sensational aftermath of this crime. They include KC, the trans night manager at the building where Karlie was killed; Sheri, the mother of the intellectually disabled man serving time; and Jacob Hendrix, the charming professor with whom, Joy knows all too well, Karlie was romantically entangled before her death.