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Terrifying prequel series to Stephen King's clown story, set in small-town 1960s US Certificate: 18 Brace yourselves for this terrifying prequel series to Stephen King's clown story IT, which is set - as so many King tales are - in seemingly sleepy small-town Maine. The town of Derry is a superficially cheery place where fear runs deep, from the school to the police department to the hatred of anything 'other' that sits in the eyes of its residents as they walk the streets. Set mostly during the Cold War panic of the 1960s but also jumping around in time, Welcome To Derry gives us two plots to follow - first, the Stranger Things-style investigations by a number of troubled schoolchildren after one of their own goes missing, and second, the suspicious goings-on at the nearby US Air Force base, where African-American war veteran Major Hanlon (British actor Jovan Adepo) has just started a new job. How do those plots intertwine? You'll have to watch to find out. Mixing a steady drip of jump scares into a near constant sense of tension, Welcome To Derry is a detailed, weirdly cosy viewing experience that places you right in the middle of a world filled with fear. The young cast are varied and excellent, while Bill Skarsgard reprises his role as Pennywise the Clown from the two films and Madeleine Stowe has an intriguing role later on. (Eight episodes)