The announcement might not come as a surprise after 9.5 million tuned in over 28 days, making it the BBC’s biggest scripted series of 2024 so far.

Mitchell stars as the genius puzzle designer John Taylor, alias ‘Ludwig’, who's just as socially awkward as Mitchell's iconic Peep Show character Mark Corrigan, albeit much less toxic.

Series one saw John’s twin brother James (also Mitchell) disappear in strange circumstances, much to the dismay of James’ wife Lucy Betts-Taylor (Anna Maxwell Martin).

To help Lucy search for her husband and father of her son Henry (Dylan Hughes), John abandoned his day job to assume James’ identity. The one small hitch was that his brother was the lead detective of a major crimes team in Cambridge, while John was living a hermetic life sealed in his small flat, designing puzzles and avoiding people.

But after being thrown into the deep end of detective work, John soon realised that his arcane day job stood him in good stead for solving Cambridge’s conveniently puzzle-based spate of murders.

In light of the renewal, Mitchell said (spoilers ahead): “I’m delighted that John ‘Ludwig’ Taylor has failed to escape the clutches of the Cambridge police and will have to continue to face up to the city’s alarming conundrum-based crime wave.”

After Lucy found herself arrested for the murder of John’s (James’) colleague, IT technician Holly, John was forced into revealing his true identity to his partner on the force, Russell.

John then also found himself in a cell, as Russell and the team grappled with his betrayal and Holly’s murder. But Holly’s mysterious death called once more for the enigmatic mind of Ludwig, and after he cracked the case, his fraudulence was swiftly swept under the rug and we left John just as he was kept on the force as an “official crime consultant.”

Meanwhile, John and Lucy also discovered the reason(s) for James’ disappearance. When James’ trail leads them to a storage unit containing the contents of Sinclair’s house, it seems as if one of Sinclair’s conspiracy theories must have been true. But James admits to John in a voicemail that he only pursued the theory because he needed a distraction from his unhappy home life, echoing their own father’s abandonment.

The door was therefore left wide open for more games of Murdle and John and Lucy’s smouldering romance.

Commenting on the series’ winning ingredients, Jon Petrie, Director of Comedy Commissioning at the BBC, said: “The blend of top-tier British comic talent, a gripping mystery, and brilliantly crafted crime storylines had viewers hooked from day one. We had high hopes for Ludwig, and it’s safe to say this comedy-detective series with a twist has become a true standout.

“We can’t thank Mark Brotherhood, David Mitchell, Anna Maxwell Martin, and the entire cast and crew enough for creating something so special. We’re eagerly awaiting series two, though it’s a bit of a shame we’ll have to spoil the surprises for ourselves by actually reading the scripts first!”

Mark Brotherhood will return to write these scripts, with Kenton Allen, Mark Brotherhood, David Mitchell, Kathryn O’Connor and Chris Sussman executive producing.