Thirty-eight-year-old Posey Jarvis is the self-appointed "Empress" of rural Spark, in Cooke County, Tennessee. She spends her days following every word about her idol and look-alike Jackie Kennedy, avoiding her stalwart husband Vern, and struggling to control her newly defiant daughter Callie Jane – all while sneaking nips of gin. When Posey unexpectedly inherits a derelict mansion from her quirky old Aunt Milbrey, she finagles her way into hosting her high school's twentieth reunion there. She cares nothing about seeing her classmates, but she cares deeply about seeing the love of her life, a man who dumped her nineteen years ago. Eighteen-year-old Callie Jane finds herself accidentally engaged and is panicking about her fast-approaching wedding. She longs to escape from her domineering mother, her job, her upcoming wedding, and the creepy peeping Tom terrorizing the town.