A police officer in the inner city looks into an odd complaint; a shopkeeper named Mr. Kayzee, he has heard, performs illicit brain surgery in his back room. He quickly identifies several alleged patients of Kayzee's, but his existential depression rises over him like a tsunami all the same. A strange phenomenon emerges among Kayzee's clients and the many people with whom he works or corresponds professionally; they all love and respect him. His patients, however, love and respect their families much more after they've seen him. This consternation only increases when he discovers a sign over Kayzee's suspicious back room, which reads "Brain surgery performed on premises. All work guaranteed." The neighbors love it as a joke, but the policeman is suspicious. Armand Marveaux, the initial complainant, reiterates his belief that his wife underwent brain surgery, but it soon emerges that this procedure involved no knives. Speaking to Kayzee himself reveals the truth: he brings his patients into the storage closet, turns on a tape recorder, and gives them advice. Together, he and Kayzee overcome his fear, hypochondria, and lack of faith in the neighborhood. In the following weeks, his depression finally begins to lift.