After being disappointed by a new episode of "Itchy & Scratchy", Bart and Lisa decide that they can write a better one themselves. Inspired by the sight of Homer accidentally slicing Marge's hair off with hedge shears, they write a script titled "Little Barbershop of Horrors", but their episode is rejected by Roger Meyers Jr., head of Itchy & Scratchy International. Correctly guessing that Meyers did not take them seriously because they were children, they resubmit the manuscript under Grampa's name, leading Meyers to hire Grampa as a staff writer. Bart and Lisa inform Grampa of their scheme, and the trio conspire to continue passing off Bart and Lisa's scripts as Grampa's, splitting the money three ways. Bart and Lisa’s cartoons are met with acclaim from audiences, resulting in Meyers firing "Itchy & Scratchy"’s entire writing staff, with the exception of Grampa.