In a village on the Suffolk coast, Frank Perry waits for his past to arrive. A decade before, he spied for the government on the Iranian chemical and biological weapons installations. His information damaged their killing capacity for years.
Now, Iran will have its revenge and has despatched its most deadly assassin to fulfil the task. Codenamed the Anvil, he will move with stealth towards his chosen objective unless Perry's protectors can reach him first.
As he draws nearer, the ring of steel protecting Perry grows tighter. But against a faceless adversary, and the job fatally compromised by the stifling political bureaucracy surrounding it, there seems little chance that the past will not have its day once more . . .