The Lame Brain Sanitarium is managed by Dr. E.D. Smith, who spells his last name J-O-N-E-S. Benny Rubin, believing he may have problems - the primary one being that he spends more money than he makes - is thinking about checking himself in. As he tours the sanitarium, he meets some of the other patients, including a fiddle destroyer, a man who believes he’s developed an unbreakable plate, a dancer with elastic legs, and a Danish opera singer and his colleague (old friends of Rubin’s) with a poor sense of geography. But the craziest people in Rubin’s mind may be the staff, especially Dr. Smith, who believes he can cure Rubin by operating. In the end, is Rubin really crazy or are the crazy ones the writers?