Sisters? Forever. Friends? NEVER. Who knew a reunion weekend could be so deadly?Meet the sorority sisters of Theta Gamma Mu:Roxy Callahan Gentry, the ruthless former sorority president and current hostess who has painstakingly choreographed every detail of this weekend—even matching the cocktails to her couture—to prove that she remains their undisputed queenAmelia Dell, the widow drenched in old money and alcohol, with her big pot-stirring spoon and uninvited boy-toy in towJamie Vale, the double-legacy pledge, straight-A student with no sparkle, now a top cardiologist with a picture-perfect family—and a well-guarded bad habitBeth Harrison, the scholarship student who never quite fit in and was only admitted because her best friend Sunny insisted that the two were a package dealSunny Spencer, the carefree and beloved friend to all, or so it seemed—until she wasn'tThey've been summoned to Roxy's luxurious Palm Springs vacation home to celebrate the engagement of her son to Beth's daught