At Foxham Prep, a posh private school for Washington, D.C.'s elite, a rumor gains momentum as it collects followers on social media, pulling three girls into its path--Bryn, who wants to erase all memories of the mistake she made last summer, cheer captain Cora, who desperately wants to believe in her boyfriend's faithfulness, and shy Georgie, newly hot after a summer at fat camp and ready to reinvent herself--but who can stop a dangerous rumor once it takes on a life of its own?