Adam Horn, a young Polish scientist, is conducting research to discover a substance that makes personality swapping possible. Appearing before a committee granting funds for further research, he presents a somewhat "stilted" achievement, demonstrating on his experimental pet the personality swap of a dog with a goat Matilda. The fame of his research reaches the former KGB, which sends him an agent committed to intercepting the research results.

Ewa Gawryluk
Wiera Tichonowa

Olaf Lubaszenko
Adam Horn

Stanisława Celińska
Krępska

Krzysztof Kowalewski
UOP Colonel Krępski

Edyta Jungowska
Anna Krępska

Szymon Bobrowski
Henryk

Paweł Burczyk
Jurij

Paweł Iwanicki
Grigorij
Wsiewołod Szyłowski
KGB General

Artur Barciś

Sławomir Orzechowski
Jan Molenda

Adam Ferency
Professor Rozwaniec

Leon Charewicz
Docent Szeski

Hanna Stankówna
Professor Nadieżda Gurgenidze

Tomasz Sapryk
Gravedigger