A youngish couple leave London and drive off excitedly to make a fresh start in more rural surroundings. They demonstrate their happiness by laughing all the way to their new town, where a cheery sign on the outskirts reads: ‘Welcome to Midwich’. So what could possibly go wrong?

In fact, even for viewers unfamiliar with John Wyndham’s famously spooky 1957 novel, from which Sky Max’s modern-day version of The Midwich Cuckoos has been adapted, it’s clear that something soon will.