Robert is found beside the highway with a head injury and amnesia. His amnesia motivates him to become a Physician and the country's leading criminal psychologist.

The Crime Doctor gets involved in the case of the poisoning of a wealthy industrialist.

A criminal psychologist tries to help a beautiful heiress going mad in a haunted mansion.

A criminal psychiatrist investigates the murder of a two-time widower.

A criminal psychologist treats an artist whose blackouts coincide with a series of murders.

In the 7th film of the "Crime Doctor" series based on the radio program, Dr. Robert Ordway is summoned to take attend a diabetic, and gives an injection of insulin taken from a bottle in the patient's pocket. The man dies and Ordway discovers that what he thought was insulin was really poison. Oops! Two other people are murdered before Ordway discovers who replaced the insulin with poison and what the motive was

A criminal psychologist investigates the murder of a veteran with amnesia.

While on vacation, a criminal psychologist investigates a murder during a typhoid epidemic.

While visiting France, a criminal psychologist tries to clear a disturbed young man of his father's murder.

A criminal psychologist tries to clear his patient of arson charges.