High school senior Harriet is still grabbling with her mother's death when an unwanted property sale causes her to join forces with her new neighbor to stop Belle Grove Plantation from turning into a wedding venue. Harriet Douglass lives with her historian father on an old plantation in Louisiana, which they have transformed into one of the South's few enslaved people's museums. Mother and daughter duo Claudia and Layla Hartwell plan to turn the property next door into a wedding venue, and host the offensively antebellum-themed wedding of two Hollywood stars. Harriet tried to convince them to change their plans. When her school announces that prom will be held on the plantation, Harriet snaps. Can Harriet use the power of social media to cancel the celebrity wedding and the plantation prom -- while trying to build a bridge between Layla and herself? -- adapted from jacket