Bernard Merivale

A high-society gent has a secret life - he writes murder mysteries and hangs out with the police attempting to solve crimes. This causes him no end of problems when his wife wants to know about his little disappearances and exceptionally late nights out.

Ed Harwood, a wisecracking private investigator from New York, discovers a crime at a hotel in Nice during a carnival. The unraveling of the mystery which lies behind will lead him and Caryl Fenton, a female insurance agent, who will become his companion, first to Paris, then to London, later through the English countryside and finally to Southampton, in search of a criminal train wrecker.

A blackmailer tries to stop a woman from revealing evidence that could save a condemned man.

A criminal organizes train crashes to discredit the railway in favor of a rival bus company. The stunts in this film were groundbreaking for 1920s British cinema. A scene which has been described as "the most spectacular rail crash in cinema history" was recorded by 22 cameras.

A condemned man uses hypnotism on a judge. After the man's death, the judge finds himself acting like the condemned man.

Vincent Floyd, a seeming lazy figure lounging around London Gentleman's Clubs is in fact a secret agent hot on the trail of Michael Marlowe whom he suspects of smuggling drugs into Britain from France on a regular basis. Floyd has so far struggled to gain evidence on Marlowe, but through a series of incidents finds himself bound for Paris on the same plane as Marlowe.....

Slippery Rodney Haines runs a high-class gambling joint in Hampstead, while elsewhere in London Lamberti's Fair for the less-well-off is on its last legs. The only link between them seems to be Tommy Blyth, whose betting has put him in serious debt with Haines and who fancies Mary, the Lamberti's adopted daughter. In fact, there is a further unexpected link between the two worlds.