In May 1943, Lieutenant of State Security Nikolai Kovalchuk received a task from the head of the UKR SMERSH, Major-General Polunochenko, to check the usual school watchman Veniamin Shubnik, who for some reason is interested in German intelligence. During the investigation conducted by the hero of the film “Death to Spies!” Operation Shock Wave, it turns out that Shubnikov previously worked as a nuclear physicist at the Ukrainian Institute of Physics and Technology. In 1939 he was arrested on charges
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