Izawa Kazuo has a good life running a simple photography store in London... until he's suddenly arrested under suspicion of espionage. As Isawa undergoes a harsh interrogation, 
Lieutenant colonel Howard Marks, master spy for the British Secret Intelligence Service, appears before him.
Army Intelligence 
Codebook Volume 3
Servizi Segreti Militari
Cifrario - Volume 3
Codificação do Exército Imperial
utilizada em Informações Confidenciais
Volume 3