The title character was Dr. Daniel Danfield, a criminal psychologist. Each episode featured his dictation of a summary of a case to his secretary, Rusty Fairfax. Dramatic sequences were interspersed with the narration. Danfield's cases often came in response to requests for help from law enforcement agencies. He frequently met with criminals to analyze them and their behavior. The publication Shows of Tomorrow, published by Radio Daily, described the program as having "emphasis on solution of crime rather than on murder."