For the first time, the reader can get acquainted first-hand with the story of a “double agent” - a secret employee acting as a confidant of two intelligence services. The author - a retired captain of the first rank - for eleven years played the role of a "Moscow agent" of the Canadian counterintelligence, famous under the archaic name of the Royal Canadian Mounted Police (RCMP). This unique long-term action of Soviet intelligence, when an officer, a career employee of the First Main Directorate of the KGB of the USSR, was “framed” for the Canadians, led to the disorganization of the activities of the RCMP and its “big brother” the US CIA and cost, according to the Canadian newspaper Citizen, the careers of six brilliant counterintelligence officers and the post of prosecutor general to their government supervisor