Jodie Whittaker, Aimee Lou Wood, Robert Carlyle, Rory Kinnear, Toby Eden and Brendan Coyle were confirmed in the cast in August 2023. The four-part series is based on the 2009 Corby poisonings and the subsequent environmental court case, dubbed in some quarters as "the British Erin Brockovich" The series is expected to be broadcast on Netflix in 2025.