In Mick Herron’s darkly comic spy thriller, the misfits of Slough House are once again drawn into the dangerous machinery of British intelligence, where incompetence can be lethal and institutional chaos is standard procedure. As political pressure mounts and old resentments resurface, the agents must navigate a world of shifting loyalties, razor-edged wit, and escalating threats that test their nerves, their instincts, and whatever passes for professionalism in their line of work.