The article reconstructs Howard Fast’s literary contacts with Soviet writers during the Khrushchev Thaw and traces the history of his painful break with the Communist movement. Based on Fast’s autobiographical books, personal correspondence, as well as articles in the Party press (Masses and Mainstream, Daily Worker), the paper demonstrates that at the beginning of 1956 the writer condemned the Stalinist regime as “bloody” and “criminal”. However, in his correspondence with the Soviet friends (Boris Izakov and Boris Polevoy) Fast tried not to enter into direct confrontation and only lamented the plight of the leftist movement in America. His Soviet friends learned about the writer’s departure from the US Communist Party from the press only in February 1957. Having every reason to believe that Fast would have informed them about such a serious step personally in a confidential manner, prominent functionaries of the Foreign Commission of the Soviet Writers’ Union became upset and furious having read Fast’s exclusive interview to Harry Schwartz, a newsman working for the New York Times. At this point Fast declared a fullfledged information war on the USSR: he accused the Soviet government of being anti- Semitic, antidemocratic and terroristic. In turn, Moscow launched a campaign to discredit Fast. After 1958, the writer was no longer mentioned in Soviet reviews, correspondence with him ceased, and all working contacts were broken off. In his post-communist period, Fast turned to the autobiographical genre, writing two books: The Naked God and Being Red, where, among other things, he provided insights into his difficult relationships with the representatives of the Soviet literary establishment. Fast’s correspondence with Boris Izakov and Boris Polevoy from the funds of the Russian State Archive of Literature and Art is published in the addendum.