When a freak cosmic event renders most of the Earth's population blind, Bill Masen - one of the lucky few to keep his sight - finds himself trapped in a London jammed with sightless mobs who prey on those who can still see. But another menace stalks blind and sighted alike.

When a freak cosmic event renders most of the Earth's population blind, Bill Masen - one of the lucky few to keep his sight - finds himself trapped in a London jammed with sightless mobs who prey on those who can still see. But another menace stalks blind and sighted alike.