Adventure In Diamonds.

Captain Stephen Dennett of the Royal Air Force is on board a passenger airliner en route to South Africa. He is unaware of the fact that Felice Falcon is an accomplished jewel thief, travelling with her partner in crime, Michael Barclay. The two of them have made a plan for a heist in the South African mines - stealing a shipment of diamonds and escaping unnoticed. The Captain isn’t that easily fooled though, and with his own agenda, he ends up with the stolen jewels himself.