Published: February 24, 2025 -- England, 1936. After a scandalous celebrity divorce, British tennis star Nevile Strange (Oliver Jackson-Cohen) and his ex-wife Audrey (Ella Lily Hyland) make the unthinkable decision to spend a summer together at Gull’s Point, their childhood home and the coastal estate of Nevile's aunt, Lady Tressilian (Anjelica Huston).

With unfinished business between the former childhood sweethearts, plus the presence of Nevile’s new wife Kay (Mimi Keene), tensions are running high. Add to this a long-suffering lady’s companion, a mysterious gentleman’s valet, an exiled cousin with a grudge, a venerable family lawyer, an inquisitive orphan and a French con man, and soon there will be murder. A troubled detective must rediscover his purpose to untangle a toxic web of jealousy, deceit and dysfunction. Can he solve the crime before another victim meets their death?

An explosive love triangle, a formidable matriarch and a house party of enemies. All compelled… Towards Zero.

Agatha Christie’s Towards Zero (3x60’) is produced by Mammoth Screen (part of ITV Studios) and Agatha Christie Limited, and is a co-commission between the BBC and BritBox International. It is adapted by Rachel Bennette, directed by Sam Yates and produced by Rebecca Durbin. Executive producers are James Prichard for Agatha Christie Limited, Sheena Bucktowonsing and Damien Timmer for Mammoth Screen, Danielle Scott-Haughton for the BBC and Jon Farrar, Stephen Nye and Robert Schildhouse for BritBox International.

Agatha Christie’s Towards Zero will be available in full on BBC iPlayer from 6am on Sunday 2 March, with episodes airing weekly on BBC One from 9pm that night.