For Marnie (Kristen Bell), high school was a horror movie, and her brother's wedding is the sequel when her archrival comes back to haunt her as his bride. Its nice girl versus mean girl in this hysterical reunion with the one person Marnie would like to forget. And if that weren’t enough, Marnie's mom (Jamie Lee Curtis) reunites with her own high school nemesis (Sigourney Weaver).