Patricia Campbell’s life has never felt smaller. Her husband is a workaholic, her teenage kids have their own lives, her senile mother-in-law needs constant care, and she’s always a step behind on her endless to-do list. The only thing keeping her sane is her book club, a close-knit group of Charleston women united by their love of true crime. At these meetings they’re as likely to talk about the Manson family as they are about their own families. One...