Britbox has set September 15 for the U.S. and Canada premiere of Agatha Christie’s Tommy & Tuppence and has released a new teaser trailer for the six-part series. The adaptation stars Antonia Thomas, Josh Dylan and Imelda Staunton and follows the detective duo as they fall in love, fall out of it and tumble back in while solving mysteries.

The cast also includes Nicholas Richardson, Charlie Condou, Callie Cooke and Chizzy Akudolu. Phoebe Eclair-Powell wrote the series and executive produces it, while Fergus O’Brien directs the first four episodes and Ellie Heydon handles the last two. Stella Merz produces the show, and Studios will handle global sales.

The launch adds another title to Britbox’s growing Agatha Christie lineup, which already includes Towards Zero, Murder is Easy, Why Didn’t They Ask Evans?, Poirot, Marple and The Pale Horse. Britbox says Tommy & Tuppence is the first English-language, contemporary television adaptation of Christie’s stories, a pitch that gives the new series a different lane from the period productions that have long defined the brand.

That distinction matters because Christie adaptations remain one of the streamer’s most reliable draws, and this one arrives as a six-part, 6x45' production from Lookout Point, part of Studios, in association with Agatha Christie Limited. The new teaser is meant to do more than announce a date; it is the first real look at how Thomas and Dylan will carry a story built as much on romance and friction as on clues and bodies.

The question now is whether Britbox can turn that novelty into a wider audience. By moving Christie into contemporary territory while keeping the familiar mechanics of a mystery duo, the company is betting that the name, the cast and the format will be enough to pull viewers back on September 15.