Con man Dudley Jerico sets out to rob corrupt millionaire Victor Rosso of his legendary Gemini diamond, but there's another operator in town who is out to con the con.
Claustrophobic train-set comedy-thriller (produced by H.G. Wells son) with an ace reporter coming up against crooks intent on stealing a gold shipment on the Scotland to London express. A scatterbrained scientist, a gun-toting dame with revenge on her mind and a pair of eccentric spinster crime novelists – who steal the film – round out the motley band of passengers who cross the path of our intrepid hero as he tries to get his big scoop.
A stranger turns up at an English country pub and asks to stay, although reveals that he has no money. He even claims to have no name. The police become suspicious when he reveals details about Susan North, a local girl who has gone missing. However, when the police try to take the stranger in for questioning, they find that they are unable to lay their hands on him. Susan then turns up, revealing that she has been in a car crash and how the stranger saved and miraculously healed her. The stranger tells them that he is a visitor from the planet Venus. The authorities block off all exits in and out of the town. The stranger tells government representatives that he wants a meeting with heads of world governments for when his people arrive in their ship in four days time. As they set this up, the stranger discovers that the authorities instead plan to lay a trap to capture his people’s ship – something they do not realise could have disastrous consequences for Earth.
Yvonne is seething when her devoted son, Michael, declares his intention to marry Madeleine, despite the latter's admitting to having an affair with a mysterious older man. At the same time, George, Michael's father, confides in Yvonne's sister, Leo, that he is in fact Madeleine's other lover. Together, they hatch a plot to end Madeleine's hopes of marriage - by threatening to reveal George's scandalous secret to his son.
