En "Corazón de perro" un médico que investiga el rejuvenecimiento humano implanta en el cerebro de un vapuleado, pero amable y reflexivo perro callejero, la hipófisis de un delincuente. El perro, lejos de rejuvenecer, se transforma en un ser humano física y moralmente repulsivo, que termina por afiliarse al partido comunista y consigue ser nombrado "subdirector del subdepartamento de limpieza de animales vagabundos", convirtiendo la vida del atribulado científico en una pesadilla.
A young girl from the Siberian province arrives in Moscow for her beloved, whom she met during his business trip. He is a test designer for buses and will be on a business trip to Hungary. It was at this point that Katya set her vacation time. But it seems that they didn’t really wait for her... However, a meeting with László changes all her plans...
