In "The Electric Executioner", a railway agent narrates his encounter with a deranged inventor, Arthur Feldon, while traveling through Mexico. Feldon has built a horrifying electrical device intended to purge the world of what he deems "unfit individuals." As the protagonist becomes embroiled in Feldon's delusional crusade, tension escalates aboard the train, leading to a shocking confrontation that melds science, fanaticism, and horror.