Concise Plot Summary
The story centers on a wealthy family living in a fully automated 'Happiness Home' that handles every need, from cooking to cleaning. The parents grow concerned when their children become obsessed with the home’s interactive nursery, which projects a hyper-realistic African veldt populated by hungry lions. As the parents attempt to set boundaries and shut down the nursery, the children’s violent resentment escalates, leading to a shocking, tragic climax that exposes the home’s dark influence.