The former head of the Institute of Science - Professor Molnar, returns to the Institute to seek treatment for his heart condition. The new director of the Institute, and his former assistant, Dr. Egberg had a falling out with Molnar after the latter considered his research unethical. However, after waking up from surgery, Molnar makes a horrifying discovery; Egberg has swapped their brains!
Leszek Herdegen
as Profesor Józef Molnar
Bogumił Antczak
as Doktor Egberg
Grażyna Marzec
as Meg
Józef Duriasz
as Doktor Dorn
Jan Paweł Kruk
as Joss
Jan Kasprzykowski
as
Michał Pietrzak
as Guy Love
Tadeusz Sabara
as
Piotr Stefaniak
as
Bohdan Sobiesiak
as
Czesław Jaroszyński
as (niewymieniony w czołówce)
Janusz Kubicki
as Doktor Berthold (niewymieniony w czołówce)
