London, present day
Historian Max Archer is invited to a clandestine meeting with legendary Cold War spymaster, Scarlet King.
Her offer to share the explosive secrets born of over half a century at the heart of global espionage would be life-changing.
But Max has little reason to trust a woman whose name is a byword for deceit and ruthlessness.
Soon he is on the wrong side of the law and on the run. As the net closes tighter around him he must somehow discover the truth.