Once a week, three women get together for book club in Kingsland, a private, gated community full of neighbors looking to do their business away from prying eyes. On the same night, their husbands meet up to play poker, where much more is being planned than anyone could guess. But on this particular night, something goes terribly wrong. When all three men end up dead or hospitalized, and the entire town is being questioned, no one seems to be able to answer the only question that really needs asking: What the hell happened?