A knife-edge thriller - now a major film starring Clive Owen, Andrea Riseborough and Gillian Anderson.

Colette McVeigh- Mother. Widow. Terrorist. For all of her twenty-nine years she has lived the Republican cause. Her husband was killed by the Brits. Her brothers have dedicated their lives to fighting them.

Until she is arrested in an aborted bombing raid in London when she has to make a choice- inform and see your children again; or stay silent and watch them grow up from the inside of a prison cell.

Her MI5 handler, David Ryan, has never questioned where his loyalties lie. But as he watches Colette put herself in increasing danger to fulfil her side of the bargain, he realises that his certainty and integrity have been fatally and irrevocably compromised...