Poison Water (2025) is a Documentary, Crime film that follows when tap water turns toxic in Cornwall, a public health disaster leads to accusations of a cover-up and the search for the truth. The story of Britain’s biggest mass poisoning. Poison Water is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 8.0 out of 10 from 1 votes. Fans of documentary movies may also want to explore similar titles below.