Counterspy

While perusing the books of an engineering company, fastidious auditor Frank Manning encounters rum goings on when he is approached by a woman who claiming she is being blackmailed. She begs him to find certain letters and he eventually agrees. Having obtained the letters, he takes them to a specified address where, to his horror, he finds a man, fully clothed, dead in the bath.

• Vernon SewellDirector
• Guy ElmesWriter
• Gaston LazareWriter

• Dermot WalshFrank Manning
• Hazel CourtClare Manning
• Hermione BaddeleyMadame Del Mar
• Alexander GaugeSmith
• Bill TraversRex
• Archie DuncanJim Fenton
• James VivianLarry Fenton
• Frederick SchreckerPlattnaur
• John PenrosePaulson
• Hugh LatimerInspector Barlow
• Beryl BaxterPlattnauer's Accomplice
• Gwen BaconMatron