"The Harrowing" is the sixth and final episode of the first series of British dark comedy anthology series Inside No. 9. It aired on 12 March 2014 on BBC Two. The episode was written by Steve Pemberton and Reece Shearsmith, and stars Shearsmith, Aimee-Ffion Edwards, Helen McCrory, Poppy Rush and Sean Buckley. While comedic in places, "The Harrowing" makes extensive use of gothic horror elements transmuted into a modern context. The plot follows Katy (Edwards), who has been hired to housesit for eccentric siblings Hector (Shearsmith) and Tabitha (McCrory). They rarely leave the house, but have an event to attend. They tell Katy about their bedridden, disabled brother Andras (Buckley), who cannot speak but will ring a bell if he needs assistance. Katy is joined by her friend Shell (Rush) once Hector and Tabitha leave, and, upon hearing Andras's bell, the pair reluctantly head upstairs. The episode takes place in Hector and Tabitha's mansion, which is kept deliberately cold and filled with paintings depicting Hell. The writers experimented with a variety of possible endings, hoping to make the episode's close both interesting and scary.

Inside No. 9 is a British black comedy anthology television programme that first aired on 5 February 2014. It is written by Steve Pemberton and Reece Shearsmith and produced by the BBC. Each 30-minute episode is a self-contained story with new characters and a new setting, almost all starring Pemberton or Shearsmith. Aside from the writers, each episode has a new cast, allowing Inside No. 9 to attract a number of well-known actors. The stories are linked only by the number 9 in some way, typically taking the form of a door marked with the number 9, and a brass hare statue that is in the background of all episodes. Themes and tone vary from episode to episode, but all have elements of comedy and horror or perverse humour, in addition to a plot twist. Pemberton and Shearsmith took inspiration for Inside No. 9 from an episode of Psychoville, a previous project, which was filmed in a single room – this in turn was inspired by Alfred Hitchcock's Rope.