[1] As with the radio series, the film deals with the complex issues of mental health and moral responsibility in the criminal-justice system.

[2] The sequels are more conventional mysteries than is the original film, with the main character working as a psychiatrist to rehabilitate lawbreakers while also solving crimes as an amateur sleuth.

Baxter finished his career with the series before suffering a nervous breakdown and severe arthritis.

While on a date in a nightclub with social worker Grace Fielding, Ordway is recognized by two men from his past, Joe Dylan and Nick Ferris.

Ordway badgers her until she reveals that he is Phil Morgan, the mastermind of a $200,000 payroll robbery from which the money was never recovered.

Tempers flare and the men fight, and during the struggle, Ordway is struck on the head, triggering memories of his past.