'Fast woman, tough guy. Mix them together and you have all the ingredients for ... a double cross'. This educational film produced by the Commonwealth Film Unit is a road safety warning to motorists on the importance of observing the road signs. Produced with a nod to film noir, our hard-bitten detective hero Larry Kent (Ken Wayne), has seen it all before and he wants us to stay safe. The woman is driving an MG and the man is driving an FJ Holden. This short would have been shown before a feature in movie theatres around Australia.