“The Nightmare Nanny” (*1/2 out of four) was a hackneyed horror melodrama about a young couple (Ashley Scott and Kip Pardue) who hire a nanny (Mekenna Melvin) to care for their daughter but soon realize all-too-late that she is a serious sicko who is trying to invade and overturn their lives. Result is so obvious and so predictable and permeated with cliches that some viewers will be forgiven for thinking it’s a parody of suspense movies but unfortunately it’s not funny either. More than 30 years ago, “The Hand That Rocks The Cradle” told the same story with a lot more serpentine style and tension.