In Red Harvest, the Continental Op arrives in the corrupt town of Personville (nicknamed 'Poisonville') at the behest of a newspaper editor seeking to clean up the city. Following the editor's murder, the Op takes matters into his own hands, manipulating rival factions to incite chaos and dismantle the criminal underworld. Hammett's novel is a seminal work in the hard-boiled detective genre, portraying a protagonist who operates in moral gray areas to achieve justice.