A poor writer discovers that a species of rats has banded together to impersonate humans and supplant them unnoticed, in a manner reminiscent of the transformations in Eugene Ionesco's Rhinoceros, or the covert conspiracy of pod-people in The Invasion of the Body Snatchers. This film's story is based on a book by the Soviet writer Alexander Grin.
While visiting his relatives in the city, a curious village boy sits on a motorcycle which starts right off, which causes lots of trouble to him and his parents.
In order to save a friend's daughter, a 17-year-old Jewish girl, from the Ustashas, the Croatian family arranges her to be wed to their son Ivo.
