Inside No 9 (BBC Two) continues its most successful series ever. Perhaps it will never quite reach the inspired heights of last week's "Bernie Clifton's Dressing Room" episode, a quite beautifully judged (and touching) jewel of a half-hour's acting/writing/comedy masterclass; already, there's talk of awards. But the relatively mundane "Once Removed", which aired a few days ago, still stood on commanding heights. Not only did it successfully manage to tell the story of a series of (comedy) murders backwards, timeslipping back 10 minutes every 10 minutes in a way the makers of Rellik must have gritted their teeth to see executed so well - ah, so that's how you do it. It also had one tiny gem that could be said to sum up an entire philosophy. Reece Shearsmith, being suffocated by bubble wrap, has to pause to poke quick, staccato holes in the bubbles before his hands can grab the polythene properly to rip an airhole (and let him continue on his killy spree). In this tiny, wordless mix of wanton silliness and dark peril lie oceans of singular comedy.

Inside the many number nines stretch continents of the imagination, and they can now call on the finest actors, such as Monica Dolan, Rory Kinnear, Jason Watkins, Kenneth Cranham, Zoe Wanamaker, to aid and slyly abet them... let it long be inexplicably underrated, so I can just squeezefully enjoy it on my own, before the bandwagon-jumping begins.

In my review of the opening episode "Zanzibar", I theorised that there were better, darker stories to come from Steve Pemberton and Reece Shearsmith and thankfully I wasn't wrong. Last week's poignant and funny "Bernie Clifton's Dressing Room" was the duo's love letter to old British comedy whose twist was heartbreaking and uplifting in equal measure. However, in terms of narrative complexity, I found this week's "Once Removed" even more enjoyable as it kept you guessing up until the end. The episode starts quite inconsequentially with May (Monica Dolan) moving home and welcoming in removal man Spike (Nick Moran) from the hilariously titled firm Handle Me Gently. However, all is not what it seems especially when we meet May's husband Viktor (Shearsmith) who appears sinister from the outset and becomes more so as the episode goes on. "Once Removed" gets its name from the fact that the plot flashes back every ten minutes to roll out the story even more and every time our perception of the characters change. "Once Removed", like most Inside No. 9 episodes, benefits from a fantastic guest cast with special praise going to David Calder playing a character who believes he's Andrew Lloyd Webber. Similarly brilliant in this episode is Pemberton who plays a nervous estate agent intent on selling the house that is central to the plot. But it's the storytelling that really makes "Once Removed" one of the greatest thirty minutes of TV I've seen in a while and makes me marvel at the brilliance of the show's writing duo. The narrative flashbacks all work and don't feel like a gimmick as they did in last year's disappointing crime drama Rellik. The final reveal also plays with the title of the show in a very clever way and shows how the episode's case of mistaken identity occurred in the first place. Although you'd feel that "Once Removed" was where this series of Inside No. 9 peaks fear not as, in my opinion, next week's "To Have and To Hold" is even better.

Another perfectly constructed Swiss watch of comedy horror from Steve Pemberton and Reece Shearsmith, also starring Monica Dolan and Emilia Fox. This time, they manufacture ornate and macabre chaos out of a house move. The story is told in reverse, so bewildering early scenes give way to a gradual revelation of means and motives. All eventually becomes clear(ish), but don't be surprised if you feel like starting again from the beginning as the credits roll.

Inside No 9: Once Removed preview

With another great episode tonight, this year's series of Inside No 9 is shaping up to be the best yet - and that from an already strong baseline. As always, this preview won't contain any major spoilers, but if you want to be completely surprised, click away now.

Inside No. 9: Series 4, Episode 3 - Once Removed review

Inside No. 9 episodes are known for having at least one twist, but Once Removed has so many twists and turns it is hard to know where to start.

Inside No 9 review: Memento meets farce

Just when you think Inside No 9 has seen it all, along comes an episode with a gun hidden in an oven mitt, attempted smothering with bubble-wrap, and a dementia-stricken father who thinks he's Andrew Lloyd Webber.

Inside No. 9 series 4 episode 3 review: Once Removed

Inside No. 9 winds back the clock in a cleverly structured episode that keeps the audience guessing.

Inside No 9 series 4 episode 3 review: Once Removed

And so when the episode ends, you're left marvelling at all the little clues that have been littered throughout the half hour.

Inside No 9 review: this is criminally underappreciated

Let's hope the makers of last year's flop BBC drama Rellik were watching, taking notes and hanging their heads in shame. Inside No. 9 (BBC Two) just provided a masterclass in how to tell a crime story backwards.

Inside No. 9 - Series 4, Episode 3, Once Removed, BBC2

Just as you, well I, might have been thinking that Reece Shearsmith and Steve Pemberton were going soft in this series, along comes Once Removed like a punch in the gob.