The crooks in London know how it works. No one carries guns and no one resists the police. Then a new gang appears that go one better. They dress as police and steal from the crooks. This upsets the natural order of the police/criminal relationship and the police and the crooks join forces to catch the IPOs (Impersonating Police Officers), including an armoured car robbery in which the police must help the gangs to set a trap.

When Richard Logan, the partner in a safe making firm, is found unconscious, on an old deserted bomb site, he finds that he has no recollection of the last three weeks. Then he discovers that the private detective, hired by his wife, has been found murdered, and a safe that his firm installed in a large country house, has been cleverly opened, and the contents are missing. So with the help of his wife, he sets out to uncover the truth.

Survivors of a sinking ship are rescued by Captain Nemo and his submarine crew. They are taken to an underwater city where they may spend the rest of their lives.

Cat burglar Henry Clarke and his accomplices the Moreaus attempt to steal diamonds from the chateau of millionaire Salinas.

In Victorian England, a fortune now depends on which of two brothers outlives the other—or can be made to have seemed to do so.

A young couple go to check out a house they're thinking of buying. A somewhat mysterious woman tells the couple several stories of the fates that befell the house's previous owners.

Medical student Philip Carey becomes involved with flirtatious waitress Mildred Rogers. Their love affair is interrupted when Philip is made aware of her constant infidelity. As Mildred quits her job and becomes a prostitute, Philip is still in love with her.

A businessman loses his sight in an explosion on the day his wife planned to leave him for another man.

A schoolgirl disappears for three days after a frank talk with the wife of a Latin teacher she loves.