Until I Kill You

Until I Kill You is a standalone Limited Series designed as a completed, finite historical narrative. The production focuses on the harrowing true story of Delia Balmer, who survived a relationship with serial killer John Sweeney. Produced by World Productions for ITV, the series was structured specifically to cover the timeline of Balmer’s memoir, detailing her initial meeting with Sweeney, the subsequent domestic abuse, his eventual capture, and the long legal battle that followed. By centering the narrative on a specific biographical account, the creators ensured the drama remained a self-contained exploration of survival and systemic failure rather than an ongoing procedural.

The creative team, led by writer Nick Stevens and director Julia Ford, approached the project as a definitive four-part event to maintain the intensity and focus of the source material. Starring Anna Maxwell Martin and Shaun Evans, the series concludes with the resolution of the criminal trial and the protagonist's path toward recovery, leaving no narrative threads for future seasons. This intentional design as a miniseries allows the production to function as a complete cinematic document of a real-life survivor's experience without the need for expansion or fictionalized sequels.