Harold Parkette disposes of his lawnmower after his neighbor's cat dies a gruesome death. But the "Lawnmower Man" he hires to do the job proves more than Harold bargained for. A police officer begins to suspect that a series of grisly industrial accidents is no coincidence in "The Mangler." At "Quitter's Inc." a smoker soon discovers that they'll truly stop at nothing to make sure their customers kick the habit. A betrayed husband goes out on "The Ledge" when he takes vengeance into his own hands. And in "Sometimes They Come Back," the concept of alumni is given new meaning when a high school teacher, haunted by the past, is assigned 3 new students who seem eerily familiar.