In a home for delinquent girls, the worst offender exchanges reminiscences with the warden.

A husband-and-wife detective team look into the murder of one of her friends, whose father--a prominent scientist--has been kidnapped. They find themselves up against a sinister crime organization headed by a mysterious figure known only as "Z".

Paul Temple is called in to help Scotland Yard track down a serial killer who has murdered several wealthy women.

A man is accused of a series of murders that were actually committed by a crazed killer called "The Tiger." He must prove his innocence and catch the murderer.

Sexton Blake and Tinker foil criminal plot connected with the Tongs, and master-minded by "famous stamp collector" and millionaire.