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
Allen Colby, heir to a huge fortune, is presumed drowned after an ocean liner sinks off the coast of Honolulu. Mysteriously, Colby reappears at his mansion only to be murdered soon after. When his body is discovered during a seance, everyone in attendance becomes a suspect, and it's up to Chan to find the murderer before he or she strikes again.
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.
A disparate group of people meet as passengers on a superspeed train crossing the U.S. Aboard are a seductive blackmailer and the stage director he intends to frame, a woman chasing her husband who is running away with the blackmail victim, and the stage director's feisty leading lady.
While a distinguished astronomer is giving a lecture in a planetarium, a shot rings out and one of the audience members is found dead. A tough detective and a brassy female reporter lock horns as they both try to break the case.
Richard Hanney has a rude awakening when a glamorous female spy falls into his bed - with a knife in her back. Having a bit of trouble explaining it all to Scotland Yard, he heads for the hills of Scotland to try to clear his name by locating the spy ring known as The 39 Steps.
Sir Borotyn, a prominent Prague resident, is discovered murdered in his home, with all indications pointing to a vampire assault. The victim's friend, Baron Otto, and the physician who analyzes the body, are certain that the vampire is the mysterious Count Mora or his daughter. Receiving little help from the law, Professor Zelen, an expert in the occult, is called in to assist with their investigation.
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.
Investor Robert Norman murdered before meeting. Police investigate. Journalist Claire Haines pursues story to impress editor. Intertwining narratives of crime solving and reporting unfold.
Hard-boiled newspaper reporter Larry Doyle (Robert Armstrong) goes a bit too far in celebrating a work bonus and wakes up on a train bound for St. Louis with only a buck on his person. To remedy the problem, Doyle pawns the revolver he's carrying. When the gun is subsequently used in a murder, Doyle's problems only multiply. In the meantime, he's also fallen in love with a comely stranger (Maxine Doyle) he convinced to impersonate his wife.