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

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

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

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

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

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

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

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

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

Dr. Robert Ordway, who specializes in amnesia, is accused of a bank robbery and must uncover the truth to clear his name. With the help of a female social worker, he discovers clues that lead him to a nightclub and a triggerman. As he investigates further, he uncovers a web of corruption and must navigate his way through the criminal underworld to find the real culprits.