Overview
- David Thewlis, Jason Watkins, Asim Chaudhry and BAFTA Rising Star nominee Posy Sterling lead the cast, with first-look images released.
- The story follows two neighbors in Oxfordshire who probe dying fish and uncover evidence that a local plant repeatedly dumped untreated sewage.
- Thewlis plays Ash, a former police detective, while Watkins portrays Peter, a professor who uses data to expose failures at the sewage works.
- Chaudhry plays Mickey, a whistleblowing plant worker, and the drama also depicts the Preen family’s E. coli tragedy and a surfer named Reuben’s illness.
- Joseph Bullman writes and directs for Halcyon Heart, with Laura McCutcheon and Meeshan Saxena producing and Aysha Rafaele as executive producer.