"Heart of a Dog" is a Soviet film adaptation of Mikhail Bulgakov’s iconic novella. Set in 1920s Moscow, it tells the satirical and darkly humorous story of a stray dog named Sharik, who is transformed into a human by Professor Preobrazhensky through a daring medical experiment. The resulting man, Poligraf Poligrafovich Sharikov, embodies the social and ideological tensions of early Soviet society. With its sharp critique of class struggle, human nature, and the perils of radical change, the film is celebrated for its faithful adaptation, brilliant performances, and rich allegorical depth.