In the novel, a mysterious figure known as the Mind Master emerges, possessing the ability to control the minds of others and manipulate them to do his bidding. As the Mind Master's powers grow stronger, he becomes a threat to society, using his abilities for personal gain and to further his own agenda.The protagonist of the story, Dr. Carey, is a psychologist who becomes aware of the Mind Master's existence and sets out to stop him. Along the way, Dr. Carey encounters various obstacles and challenges, including skepticism from the authorities and resistance from those who have fallen under the Mind Master's influence.