Written by This Time With Alan Partridge writers Neil and Rob Gibbons, the new comedy for BBC Two follows a failing witchfinder (Key) as he transports a suspected witch (Cooper) across 1640s East Anglia, to a trial that could change his fortunes forever.

Fear of witchcraft is rife in England 1645, where Puritanical Christianity, deep-rooted superstition and a willingness to scapegoat outsiders have created a tinderbox of suspicion. With the sport of witchfinding flourishing, self-appointed witch experts achieve hero status by investigating accusations of witchery and extracting confessions.

When an unsuccessful witchfinder is tasked with transporting a suspected witch across East Anglia on a road-fee road trip through a country gripped by civil war, famine and plague, his captive turns out to be the worst possible travel companion. With her ability to ask uncomfortable questions, the inquisitive, uncouth woman turns the straightforward journey into a life-changing ordeal.

The ensemble comedy will also star Jessica Hynes (W1A), Daniel Rigby (Landscapers), Tuwaine Barrett (Blue Story), Reece Shearsmith (Inside No. 9) Julian Barratt (The Mighty Boosh), Ricky Tomlinson (The Royle Family), Rosie Cavaliero (Peep Show), Cariad Lloyd (Murder in Successville), Ellie White (Stath Lets Flats), Vincent Franklin (The Thick Of It), Joplin Sibtain (Avenue 5), Allan Mustafa (People Just Do Nothing), Seb Cardinal (Cardinal Burns) and Dan Skinner (Shooting Stars).

The Witchfinder is heading to BBC Two and BBC iPlayer soon.