Lizzie and Bex were best friends in college. After graduation, Bex vanished, leaving Lizzie confused and devastated. Fifteen years later, Bex is now Rebecca Sommers, a “traditional” Instagram influencer with millions of followers who salivate over her perfect life on her ranch with her five children and handsome husband, Gray. Lizzie is a struggling magazine writer, watching reels while her young children demand her attention. One night out of the blue, Bex calls Lizzie with a career-making proposition—an exclusive interview with her about her multimillion-dollar business venture and an invitation to MomBomb, the high-profile influencing conference. At the conference, Bex goes missing and Gray is found brutally murdered on their ranch. Lizzie finds herself plunged into the dark side of the cutthroat world of social media that includes jealousy, sordid affairs, swingers, and backstabbing. She must learn who her old friend has become and who she has double-crossed to try to find her, clear her name, and maybe even save her life.