When Stacy Thomas receives the invitation to her thirtieth high school reunion, she is overcome with mixed emotions. On the one hand, it might be nice to see her old classmates again - but on the other, how is she going to cram thirty years' worth of exercise and personal appearance adjustments into eight weeks? And then there's the prospect of running into her greatest frenemy, Brooke Reeve, after so long. Brooke, the popular and yet perpetual "mean girl" in high school publicly criticized nearly every girl in their class, and only let the elite take part in her exclusive social circle, The Sticky Wicket Garden Club. Stacy had idolized Brooke early on, but she too fell victim to Brooke's scathing social ostracism. Now thirty years later, Stacy learns that Brooke's life is in shambles and faces a tough moral quandary: when the person you can't stand the most turns to you for help, what do you do?