Inside No. 9 is a British black comedy anthology television programme written and created by Steve Pemberton and Reece Shearsmith. It aired on BBC Two from 5 February 2014 to 12 June 2024, running for 9 series and 55 episodes. Each 30-minute episode is a self-contained story with new characters and a new setting, almost all starring Pemberton or Shearsmith (usually both). 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 a setting related to the number 9 in some way, and a brass hare statue that is hidden in 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.

Inside No. 9 received positive reviews from critics, holding a 100% rating on Rotten Tomatoes. Critics have praised the humour and creativity of the scripts, as well as the talent of the featured actors.

A one-hour documentary, Inside No. 9: The Party's Over, aired on BBC One on 22 December 2024. The documentary gave a behind-the-scenes look at filming the last ever series, plus interviews with cast and crew from the nine series.

In January 2025, Pemberton and Shearsmith wrote and starred in a West End stage play based on the series, titled Inside No. 9 Stage/Fright. The play was directed by Simon Evans and ran at the Wyndham's Theatre, London until April before embarking on a UK tour in the autumn and returning to London at the Hammersmith Apollo in January 2026.

Format Inside No. 9 is an anthology series, with each episode featuring a new story, new setting, and new characters. Episodes run roughly thirty minutes each, with the self-contained story reaching a conclusion. The stories are linked primarily by the fact that each has an element of the story linked to the number 9, be that a mansion, a dressing room or even a shoe, size 9. Almost every episode stars Reece Shearsmith or Steve Pemberton, and regularly both. Each episode is effectively a short play. Some episodes take place in real-time, following half an hour in the lives of the characters. Every episode of Inside No. 9 features an ornamental hare somewhere on-screen. According to Pemberton, "Because each episode is so wildly different there was nothing really linking them other than the fact they were all inside a Number Nine, I just thought it would be nice to have an object that you could hide and just have there on every set." There is, however, no particular significance to the hare itself.

As is typical of Shearsmith and Pemberton's work, the scripts address dark topics, with, for instance, the first episode touching upon incest, child sexual abuse and murder. The plotlines make use of twists and surprises of various sorts, though in some cases the surprise is the lack of twist. In an interview, Pemberton said that "there is always a desire to wrong-foot the viewer. That's what you strive to do". The tone varies episode-by-episode. For example, while gothic horror was a major component in one case, other times slapstick comedy was used extensively; the humour, however, is typically dark and British. The episodes generally begin with scenes of "utter banality", before the darker elements are revealed. Despite the various episodes featuring unrelated plots and characters, one reviewer said that they are all linked "by a mercurial synthesis of morbid comedy, wicked social commentary and a genuine creepiness".

Inside No. 9 is somewhat more grounded and realistic than the writers' previous work, such as Psychoville and The League of Gentlemen. Pemberton said that he and Shearsmith decided not to mix the worlds of Inside No. 9 and their previous projects, but nonetheless include the occasional reference; for example, a character called "Ollie" is mentioned in one Inside No. 9 episode, and the writers imagined that this was Ollie Plimsoles of Legz Akimbo, a character from The League of Gentlemen. Similarly, Inside No. 9 was referenced in the 2017 reunion specials of The League of Gentlemen. Tubbs and Edward are seen living in flat number 9, and the Inside No. 9 hare is visible on their shop counter. In the 2018 Halloween special, in which Pemberton and Shearsmith play versions of themselves, both the League of Gentlemen and another of its writers, Mark Gatiss, are directly referred to in the dialogue. The 2020 episode "Death Be Not Proud" directly referenced Psychoville by featuring various characters from the series in that particular episode.

Production and development In 2012, after finishing their previous show, Psychoville, writers Pemberton and Shearsmith were commissioned to produce two series for the BBC by controllers Janice Hadlow and Cheryl Taylor, partially in response to Sky beginning to produce comedy. At the time, it was unclear whether this would be two series of Inside No. 9, then known by the working title Happy Endings, or a series of Inside No. 9 and a series of some other programme. Inside No. 9 was to be produced by a BBC team, which was later revealed to be David Kerr (director), Jon Plowman (executive producer) and Adam Tandy (producer).

Pemberton and Shearsmith took inspiration for Inside No. 9 from "David and Maureen", episode 4 of the first series of Psychoville, which was in turn inspired by Alfred Hitchcock's Rope. This episode took place entirely in a single room, and was filmed in only two shots. The writers were keen to explore other stories in this bottle episode or TV play format, and Inside No. 9 allowed them to do this.Pemberton, Steve; Shearsmith, Reece (17 March 2014). "Inside Inside No. 9". Inside No. 9 Series 1 DVD. BBC. At the same time, the concept of Inside No. 9 was a "reaction" to Psychoville, with Shearsmith saying that the two of them had "been so involved with labyrinthine over-arcing, we thought it would be nice to do six different stories with a complete new house of people each week. That's appealing, because as a viewer you might not like this story, but you've got a different one next week." Elsewhere, Shearsmith explained that the pair returned to writing macabre stories as they "always feel slightly unfulfilled if [they] write something that's purely comedic, [as] it just feels too frivolous and light". The first story that the pair wrote specifically for Inside No. 9 was about a birthday party. BBC producers felt that this story would work as the opening episode of a sitcom, but, given the script's events, Pemberton and Shearsmith were not happy to develop the idea into its own programme. The script was consequently shelved and revisited during the planning process for the second series, becoming "Nana's Party", the fifth episode of the series and eleventh overall. During the filming of Inside No. 9, Shearsmith professed excitement to be working on the programme, saying that "[b]eing in the middle of filming a third series of Psychoville would be utterly depressing". Pemberton and Shearsmith aimed for a simpler experience with Inside No. 9 than they had experienced with Psychoville, describing "Sardines", Inside No. 9's first episode, by saying that it was "just about some good actors in a wardrobe with a good story."

At the time of Inside No. 9 production, the anthology series was a rare genre for British television programmes. Previous horror anthologies include Tales of the Unexpected, The Twilight Zone and Alfred Hitchcock Presents; while these would sometimes use comedic elements, they are more prominent in Inside No. 9. Murder Most Horrid followed a similar format, but was far more comedic than horrific. Other anthology-like series on British television include Seven of One and Comedy Playhouse, though these programmes lacked horror elements, and, unlike Inside No. 9, served as pilots for potential series. However, the British anthology show Black Mirror, which also features elements of comedy and horror, was very popular around the time of Inside No. 9. For Pemberton, the 1970s and 1980s were "full of" anthology shows; other examples included Play for Today, Beasts and Armchair Thriller. More recently, anthologies have become less popular with television executives, but the writers hope that they may be able to contribute to a "renaissance" for the genre. According to journalist and broadcaster Mark Lawson, this is because anthologies can fail to motivate viewers to stay with a series, and, further, new sets and casts are required for each episode, meaning that a six-part anthology series will generally be more expensive than a six-part series in a more standard format. For Lawson, Inside No. 9 was able to overcome these problems through the "pleasing coherence" offered by the fact each episode was set in a number 9, and "the wit and inventiveness" of the opening episodes, which could sufficiently engage viewers. Pemberton and Shearsmith had originally considered alternative ways to link the stories, such as all the settings having a shared post man, but then decided that such a strong relationship between stories was not needed.

The first series was broadcast in 2014, alongside a special online-only cinemagraph-based webisode. The BBC ordered a second series of Inside No. 9 before the first episode had aired. Inspiration and production varied from instalment to instalment, and each was filmed separately, taking less than a week per episode. After Shearsmith and Pemberton had decided that each episode would be about confinement, and having written some of the later episodes, they were inspired by a wardrobe in their working space for "Sardines". The writers were keen to see how confined they could make the characters, aiming to induce feelings of claustrophobia in viewers. The anthology format allowed Pemberton and Shearsmith to revisit prior ideas, which is what they did with "A Quiet Night In" and "Tom & Gerri". The former was inspired by the writers' efforts to include a long segment without dialogue in an episode of Psychoville. Both episodes followed break-ins. The Pinteresque "Tom & Gerri" was based upon a play written by Pemberton and Shearsmith while the pair were living together and job seeking. The setting was based upon their own flat, while the character Tom's development evoked the experience of job-hunting. "Last Gasp" was inspired by a person Pemberton had seen on Multi-Coloured Swap Shop who collected jars of air, as well as the death of Michael Jackson and the death of Amy Winehouse. "The Understudy", the plot of which is partially based upon and concerns Macbeth, took longer to write than any other episode; the writers rewrote the script several times, as they were unsure of whether the characters should be amateur or professional actors. "The Harrowing" was the writers' attempt to produce a gothic horror episode. They made use of more horror tropes than previous episodes, but the setting allowed them to include modern elements.