Agatha Christie’s Tommy and Tuppence, premiering September 15 on BritBox, is unlike any Agatha Christie show you’ve seen before. That’s because for the very first time ever, TV producers are taking Christie’s classic characters and dropping them into modern times to solve a 21st century murder mystery!

Thomas “Tommy” Beresford and Prudence L. “Tuppence” Cowley were first introduced in Christie’s 1922 novel, The Secret Adversary. Tommy and Tuppence were childhood friends who run into each other in the aftermath of the Great War (aka World War I). Christie described Tommy as a young war veteran and Tuppence as an impulsive and charismatic young woman of her time, complete with trendy bobbed hair. Over the decades, Christie would revisit the couple as newlyweds, parents, and even solving crimes during their 1970s retirement years.

Because Tommy and Tuppence are characters who grew in tandem with the times, that makes them the perfect Christie characters for reinvention over a century after their literary debut.

“Tommy and Tuppence are university exes who meet each other at a wedding where a murder takes place,” Tommy and Tuppence writer and executive producer Phoebe Eclair-Powell explains in an first look video exclusive to DECIDER.

“Tommy and Tuppence are a really fun take on the murder mystery genre,” director Fergus O’Brien says in the featurette. “A really exciting blend of what’s modern, what’s classic, and what really works in that Agatha Christie genre.”

Tommy and Tuppence’s adventures have been adapted numerous times over the years for radio, TV, and (French) film. Richard Attenborough, James Warwick, and David Walliams are just a few of the actors to play Tommy, while Francesca Annis, Greta Scacchi, and Jessica Raine have all put their mark on Tuppence. Now, Josh Dylan (The Buccaneers and Mamma Mia! Here We Go Again!) and Antonia Thomas (Misfits and The Good Doctor) have been cast as the titular crime solvers and would-be soulmates.

“It’s the story of how they come together,” O’Brien says. “It’s, in that sense, a rom-com, and folded into that is a classic Whodunnit.”

Want to see more? You’ll have to wait to watch Agatha Christie’s Tommy and Tuppence when it premieres on BritBox on Tuesday, September 15.

Where Can You Watch Agatha Christie’s Tommy and Tuppence? How to Get BritBox:

Agatha Christie’s Tommy and Tuppence is a BritBox exclusive, which means you’ll need BritBox to watch.

If you’re new to BritBox, you can get started with a great deal. If you subscribe today, your first two months will be just $0.99/month. After two months, your subscription will renew at $10.99/month.

When Does Agatha Christie’s Tommy and Tuppence Come Out?

BritBox’s newest cozy mystery show, Agatha Christie’s Tommy and Tuppence, premieres on Tuesday, September 15, 2026.