This work investigates the complex and often clandestine operations of the Canadian intelligence community during the Cold War era. John Sawatsky, a veteran investigative journalist known for his meticulous research, examines the internal mechanisms, political pressures, and moral ambiguities inherent in state-sponsored espionage. The book utilizes declassified documents and extensive interviews to construct a detailed analysis of how intelligence services functioned within the Canadian government framework.

Experts and historians frequently cite this work as a foundational text for understanding the evolution of Canadian national security policy. Readers often note the dense, fact-heavy nature of the prose, which reflects the author's background in investigative journalism.