"Mick and Amy Nash are an ordinary couple leading ordinary lives. And then, into the house next door move the Renders - beautiful, charming, perfect ... and not at all what they pretend to be. Too late Mick learns that something is deeply, darkly wrong with the neighbours. Who are these people? Where did they come from? And what are they hiding in the basement? As death and darkness descend on the neighbourhood, only Mick can save his family and expose the horrifying truth about the people next door - a secret already hailed as the most electrifying twist ending in years.