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

Brass Bancroft and his sidekick Gabby Watters are recruited onto the secret service and go undercover to crack a ruthless gang that smuggles illegal aliens.

A juror in a murder trial, after voting to convict, has second thoughts and begins to investigate on his own before the execution. German version of “Murder.”

Silent Madden and his daughter Molly have left the criminal underworld of San Francisco thanks to the wise teachings of Chang Low, a Confucian master. But the evil Black Mike…

A fake psychic suddenly turns into the real thing when he meets a young beauty. (TCM)

Charlie’s visit to Paris, ostensibly a vacation, is really a mission to investigate a bond-forgery racket. But his agent, apache dancer Nardi is killed before she can tell him much….

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…

A pretty Chinese woman, seeking help from San Francisco detective James Lee Wong, is killed by a poisoned dart in his front hall, having time only to scrawl “Captain J”…

The mastermind behind a ubiquitous spy operation learns of a dangerous romance between a Russian lady in his employ and a dashing agent from the government’s secret service.

An American goes to pre-war Germany to find his mother and discovers her in a concentration camp. With the help of an American-born widowed countess he seeks to engineer her…

Having once again avoided criminal conviction, Professor Moriarity develops a murderous plan to “finish off” his last major nemesis, Sherlock Holmes, by making him fail to prevent the perfect crime….

Betrayal and espionage abound as an experimental aircraft is readied for its maiden voyage.