The Last Enemy is a five-part BBC television drama starring Benedict Cumberbatch and featuring Robert Carlyle and Max Beesley.

Set in a recognisable dystopian near-future London, The Last Enemy features the introduction of "TIA" (Total Information Awareness), a centralised database that can be used to track and monitor anybody, by putting all government and corporate – i.e. credit card and bank activity, phone use, internet use, purchases, rentals, etc.

The story deals with a political cover-up of a sanctioned but secret medical experiment run amok with key members of the government trying desperately to hide all evidence of their experimental batch of vaccine that seems to be causing a deadly virus.

The complex story unspools to reveal the moral, social and privacy concerns of this hypothetical TIA system in a post-7/7 world, including such control mechanisms familiar to both real life and science fiction as retinal scans, fingerprint identification and ubiquitous camera and mobile phone surveillance footage.

The story is told through the eyes of a mathematical genius, Stephen Ezard, who is portrayed as a recluse showing some signs of obsessive-compulsive disorder.