Feef is midway through spy training and longs for adventure, but with the war coming to an end, she finds herself working behind a desk within the British civil service instead. Feef is then seduced by an American agent into spying on her own country.

Feef's lover goes missing, just as things begin to heat up in her hunt for the Russian mole. And she commits her first personal betrayal when she's instructed to spy on Hugh.

The truth about what happened to Jarvis is revealed. And the Soviet mole begins to notice Feef's mission. The game of cat and mouse is on, and the stakes are deadly.