When Scotland Yard finds themselves up against a brick wall in tracking down a vicious gang of thieves and bank robbers, they call in Layton, a loner from MI5 to work his way into the gang and help bring them down.

• Northiam Productions
• British Lion Films
• William Sylvester
• Mai Zetterling
• John Meillon
• Anthony Dawson
• Neil McCarthy
• Joseph Fürst
• Harry Baird
• John Phillips