Herman Simm, a high-ranking Estonian defense official, lived a double life for over a decade, serving as a trusted government figure while secretly working as a Russian intelligence agent. Behind a facade of professional competence and national service, Simm orchestrated a complex web of espionage, leaking thousands of classified documents to his handlers. His story is a chilling exploration of betrayal, the psychological toll of a double life, and the ease with which a trusted individual can compromise national security from within.