Doomwatch: Winter Angel

The waters surrounding an island become contaminated by chemical dumping, and people who eat fish caught in those waters become deformed and violent.

University lecturer Neil Tannahill is drawn into a sinister conspiracy involving secretly-stored Soviet nuclear waste at a remote British nuclear facility after receiving an enigmatic note from legendary atomic scientist and one-time former head of "Doomwatch" (the infamous Scientific watchdog group of the seventies), Dr Spencer Quist.