On her graduation night, Charlotte learns her first love has returned to her small Georgia town for the first time since vanishing the year before, in the midst of an awful trauma in her life. But on that night, a girl her age is found dead – and then another. Something terrible has arisen in this place, and as her final summer speeds towards a nightmarish conclusion, Charlotte gets the unshakeable feeling that somehow it is coming for her – in ways more troubling than she could ever know.