Dirty Business cast, filming locations, true story, and episode count for new Channel 4 drama Monday, February 23, 2026 channel4 dirtybusiness davidthewlis jasonwatkins asimchaudhry whistleblower environmental pollution sewage kent Channel 4’s latest factual drama, Dirty Business, dives deep into a decade-long investigation of England’s water companies, revealing the real-life stories of whistleblowers and victims affected by sewage-polluted water. This … Read More