Holmes takes a vacation and visits his old friend Sir Henry Baskerville. His vacation ends when he suddenly finds himself in the middle of a double-murder mystery. Now he's got to find Professor Moriarty and the horse Silver Blaze before the great cup final horse race.

Holmes, retired to Sussex, is drawn into a last case when his arch enemy Moriarty arranges with an American gang to kill one John Douglas, a country gentleman with a mysterious past. Holmes' methods baffle Watson and Lestrade, but his results astonish them. In a long flashback, the victim's wife tells the story of the sinister Vermissa Valley.

A convicted female blackmailer is found murdered in her flat and suspicion falls on three men, all of whom the police believe may have had reason to wish her dead

Suave private investigator Norman Conquest intercepts a secret message and meets a beautiful but foreign blonde lady in room 605 of the Park Plaza hotel. But when Conquest wakes up in the room the next morning he is lying next to a dead body. With the mysterious blonde nowhere to be seen, Conquest soon becomes the police s number one suspect with Inspector Williams following his every move. In order to clear his name, Conquest enlists the help of Pixie Everard (Joy Shelton), but the going gets rough when he discovers that the murder is connected to a stash of stolen diamonds. As gun-happy gangs of communists and Nazi sympathizers turn up the heat, Conquest has to solve the murder whilst staying one step ahead of both the gangs and the police.

Small-time jewel thief Leo Martin is deserted by his partners-in-crime, club owner Gus Loman and driver Hatchett, when the robbery they are committing goes wrong. After serving his prison sentence, Leo emerges with an intricate plan for revenge. Leo implicates Loman, as well as his amoral boss, Gregory Lang, for murder -- but Inspector Rogers suspects Leo.

Caught in a loveless marriage, Dr. John Winnington (Ronald Howard) can't stop himself from falling for his wife's (Mary Laura Wood) younger sister, Christine (Olga Edwardes). But when he suddenly becomes the prime suspect in his wife's tragic murder, John relies on his friend Eric (John Bentley) to clear his name. This classic murder mystery encourages viewers to evaluate all of the clues and guess the killer's identity.

To beautify his street and trim city spending, stuffy councilman Jack (Francis Matthews) pushes to have the last gas lamp in town removed. But this angers his neighbors Albert (Ian Fleming) and Victoria (Amy Dalby), an inconspicuous pair of serial killers who choose Jack as their next victim. This dark comedy also stars Lisa Daniely as Mary, a local advocate who fights tooth and nail against Jack's modernization efforts.

Soon after celebrating his engagement to aristocratic heiress Kathy Riddle (Carol Marsh), engineer Bob Jensen (Ronald Howard) is accused by an insurance investigator of being a notorious -- and murderous -- jewel thief. Can Bob restore his reputation and regain Kathy's trust? Desperate to prove his innocence, Bob engineers a daring jailbreak and pursues the real culprit. Montgomery Tully directs this crime drama.

Mr. Moto goes undercover to find out who has been blowing up oil wells and trying to gain total control of all the oil leases from a petroleum-rich Middle Eastern country.

During the Nazi occupation of Belgium during World War II, a Belgian resistance group revives the newspaper "La Libre Belgique" to expose and counter Nazi propaganda efforts to deceive the people. They are so effective that the Nazis offer a reward for the capture of the paper's staff, although they don't know their identities. One of them is a well-known entertainer, and when his jealous partner hears of the reward, he turns him in. The paper's publishers escape capture, but their staff doesn't. The paper's founders must find not only a way to keep from getting captured by the Nazis but keep their newspaper going and get their staff released.