Medical student Paula wins a place at an exclusive Heidelberg medical school. When the body of a young man she met on the train turns up on her dissection table, she begins to investigate the mysterious circumstances surrounding his death.

The doctor and soccer player in the leisure time Jo Hauser decides to move to Berlin and be an intern in a famous clinic, expecting to increase his knowledge and expertize, and help his handicap brother Willi Hauser. He joins a secret fraternity of doctors, under the leadership of Prof. Muller-LaRousse, who is researching the use of bionic muscles in human beings without any ethics or respect to the laws. The team is also volunteer to the experiences, and is under investigation of Paula Henning. When Jo gets close to a Filipino nurse, and becomes addicted in the drugs used in experience, he realizes the truth hidden in the methods used by the secret society in the development of science.