The Defector

The Defector recounts the compelling story of KGB agent Oleg Lyalin’s defection and its significant impact on Cold War espionage, including the expulsion of numerous Soviet spies from Britain. Drawing on declassified files and interviews, the narrative explores themes of deception, intelligence failures, and shifting alliances among Western spy agencies. This account sheds light on a pivotal moment that challenged Cold War dynamics and influenced the relationship between UK and US intelligence services.