The film follows the exploits of J.G. Reeder, a mild-mannered but sharp investigator from the Public Prosecutor's office, as he navigates a complex web of crime.

• British Lion Films
• Muriel Angelus
• Nigel Bruce
• James Raglan
• Janice Adair
• Geoffrey Gwyther
• George Bellamy
• W. Cronin Wilson
• Douglas Payne