When several women are found mutilated and murdered, the Paris police are baffled as to who the killer may be. All evidence points to Dupin, but soon it becomes apparent that it is someone (or something) stronger and deadlier than a human.

Marine Sergeant James O'Hearn is being tried at the San Diego Marine base for desertion, theft, scandalous conduct and destruction of property in time of war. He refuses to testify or plead guilty or not guilty to the charges. Showgirl Ginger Martin takes the stand against his protest. She testifies O'Hearn won't talk because he is protecting the name of his pal, Marine Private Davey White. Ginger tells how she, broke and stranded, met the two marines in Shanghai two weeks before Pearl Harbor.

Sach is the exact double of a famous French scientist who has invented a powerful rocket fuel. Enemy agents, mistaking Sach for the scientist, attempt to kidnap him and get the formula for the fuel.

This "tabloid musical" short showcases bandleader Dick Winslow and singer Veola Vonn in a plot similar to O'Henry's "The Cop and the Anthem."

Beyond Hell's Gate Pass is territory controlled by a man who calls himself King Carter; he uses a variety of schemes to prevent the railroad from being built, for fear it will finish his control of (what he considers) his land.

Chan, in Paris for a reunion with friends from World War I, becomes involved in investigating the murder of a munitions manufacturer who was supplying arms to the enemy, even as the rising clouds of World War II force the city into nightly blackout status..

In a meeting with the leaders of his vice syndicate, gangster boss James "Lucky" Lombardo complains that his profits are down. He demands that his henchmen get new, younger and prettier girls for his bordellos.

Slip and the gang foil foes of the exiled, incognito king of Truania.

In one of his rare performances without Bud Abbott, Lou Costello plays a rubbish collector and inventor. When radiation in a nearby cave turns his girlfriend into a giantess, antics ensue as he tries to shrink her using one of his inventions.

A truck convoy traveling the Burma Road is menaced by a group of smugglers.