Drummond's girlfriend is kidnapped by his enemies and he along with his friend Nielsen, an inspector from Scotland Yard, follow the trail and try to rescue her from the kidnappers.
Returning from European exile where she avoided testifying against her criminal associates, a former singer with a tell-all diary is murdered to insure her silence.
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.
Ann Harding plays a lovely but somewhat naive young woman who goes on a European vacation after winning a lottery. Swept off her feet by charming Basil Rathbone, Harding finds herself married before she is fully able to grasp the situation. Slowly but surely, Rathbone's loving veneer crumbles; when he casually asks Harding to sign a document turning her entire fortune over to him, she deduces that her days are numbered.
Sir James Blake has retired from Scotland Yard so that he can assist his niece Hope and her friend Jerry in developing an apparatus they have invented. Sir James thinks that their invention has the potential to prevent wars, and plans to donate it to the League of Nations. But a gang of criminals led by the elusive "Scorpion" steals the device, and Blake and his associates must recover the invention and determine the identity of the "Scorpion".
Drummond manages to save a woman from jumping in front of his car but she runs away with his car. He traces her and she asks him to help her out of a dangerous situation.
Insurance Agent Ted Sanders has been called in to investigate a robbery and murder. A deputy also arrives to investigate. But unknown to Ted, the Deputy is a fake and actually part of the gang. The fake plants some of the money in Ted's room so he can arrest him. Then with the help of the gang he plans to finish Ted off.
After a good-natured Irish cop is framed for a diamond robbery and murder and presumed dead in a train wreck, he gets plastic surgery and returns to expose the real killers.
During World War I, a novelist declared dead is recruited by British intelligence and sent to Switzerland under a new identity to assassinate a German spy. Teamed with a fellow agent posing as his wife and an eccentric assassin known as “the General,” the trio close in on their target — until two of them grow ambivalent when their duty to the mission clashes with their consciences.
The film begins in a BBC studio with the 100th edition of "In Town Tonight". Flotsam and Jetsom open with a "topical number". Then there is an interview with a distinguished actor, which dissolves into a performance of one of his famous melodramas about a wicked moneylender etc.
A famous detective is invited to a swanky party at an elegant mansion, but before the night is over he finds himself involved with gangsters, blackmail and murde
A pair of detectives investigates the murder of an elderly millionaire who was the target of blackmail and death threats and find that there is no shortage of suspects, many of them in the victim's own family.
James Houghland, inventor of a new method by which television signals can be instantaneously sent anywhere in the world, refuses to sell the process to television companies, who then send agents to acquire the invention any way they can. On the night of his initial broadcast Houghland is mysteriously murdered in the middle of his demonstration and it falls to Police Chief Nelson to determine who the murderer is from the many suspects present.
A crazed scientist invents a serum that induces a catatonic state in anyone who gets the injection. He uses the serum to paralyze his enemies, in order to bury them alive.