What happens when two aging professors whose fathers were dedicated Nazi scientists, finally perfect a mind-altering drug that can be used to modify human behavior? Ralph Morrison, a retired cop soon finds out as he tries to prevent the Nazis from using the drug to take over the world. More
As they plot to carry out their plan for world domination, they influence the lives of many people around them. While still a child, Professor Otto Zemanova had promised his father he would continue his work when he got old enough. During World War II, his father had searched for a drug that would allow him to control the minds of the people of conquered countries. Professor Marian Larsen, a researcher at the same lab where Zemanova works, discovers his plan. Knowing that her life is in danger, she seeks the help of Ralph Morrison, a retired police detective and an aspiring writer who also works with her. She had participated in a study that was secretly set up by the professor and another nazi, Professor Ed Schwartz to determine if the drug really works. Six women, including Marian, had participated in the study thinking they were testing an influenza drug. Someone tries to frame Professor Zemanova. Ralph finds mutilated bodies in the professor’s backyard and calls the police. As the police try to find out who killed the women, Professor Schwartz begins his campaign of terror by having some of the women who were on the study killed so he can recover their brains for further study. Marian is kidnapped and taken to a secluded house in the woods where she eventually escapes with Ralph’s help. Eugene Bissell, a cop who has known Ralph since he was a kid helps them sort out the details of what is happening. Joining forces with Ralph and Marian, Bissell arrives at Professor Zemanova’s home after one of the programmed study subjects kills him. Professor Schwartz has programmed all of the study subjects and Marian thinks that she has been programmed to kill someone. Puzzled because she doesn’t know who she is supposed to kill, or when it might happen, she allows Ralph to take her to the hospital for treatment. Meantime, Schwartz continues with his plan to put the drug in the water supply of the city of Charleston, West Virginia. The FBI captures them before they can carry out the plan.