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.
| Editing | Miroslava Kapić | Editor |
| Editing | Žana Gerova | Editor |
| Costume & Make-Up | Vanda Petrović | Makeup Artist |
| Directing | Krsto Papić | Director |
| Costume & Make-Up | Berta Meglic | Key Makeup Artist |
| Writing | Alexander Grin | Novel |
| Writing | Krsto Papić | Writer |
| Writing | Ivo Brešan | Writer |
| Art | Mario Ivezić | Art Direction |
| Writing | Zoran Tadić | Writer |
| Directing | Branko Lustig | First Assistant Director |
| Camera | Ivica Rajković | Director of Photography |
| Sound | Branislav Živković | Music |
| Sound | Mladen Prebil | Sound Recordist |
