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!

The Gestapo searches one of the apartments in Warsaw. It comes to a tragedy.

Mad scientist Professor Frogg invites an unsuspecting friend into his futuristic mansion. He begins to tell him about plans to control Earth with the help of invaders from another planet.