Terror grips the streets of London when an unknown murderer targets the blind, leaving a gruesome calling card. The crimes resonate with 11-year-old Lucas (Ben Keyworth), whose eerie set of circumstances -- his mother is blind; his father is a police officer working on the case -- causes his imagination to unravel dangerously. Is this murderous pattern the product of a boy's tortured, fertile creativity, or are these inexplicable acts actually occurring?