The Steel Key

An adventurer investigates the theft of a formula for hardened steel, assisted by his girlfriend.

Top Cast

Terence MorganJohnny O'Flynn

Joan RiceDoreen Wilson

Raymond LovellInspector Forsythe

Dianne FosterSylvia Newman

Colin TapleyDr. Crabtree

Esmond KnightProf. Newman

Mark BakerDr. Metcalfe

Cyril ConwaySgt. Cove