The intrepid reporter and amateur sleuth Joseph Rouletabille becomes involved in the investigation of a hideous crime committed in a room painted yellow, whose door was locked from the inside…
A film projectionist longs to be a detective, and puts his meagre skills to work when he is framed by a rival for stealing his girlfriend's father's pocketwatch.
New York schoolmarm Hildegarde Withers assists a detective when a body of unscrupulous stockbroker Gerald Parker suddenly appears in the penguin tank at the aquarium.
Driven to desperation by his young and extravagant wife, alienist Dr. Emil Brandt has arranged a perfect crime; now he begs the police to lock him up before he can commit it.
A railroad employee finds out the identity of "The Wrecker", a criminal who is deliberately causing trains to crash. However, before he can disclose the crook's name, he is shot and killed. A passenger aboard the train volunteers to go after the killer and bring "The Wrecker" to justice.
An amateur sleuth suspects foul play when a fellow passenger on a seaplane suddenly dies. The third and final film with Edna May Oliver and James Gleason as the astute schoolteacher Hildegarde Withers and the New York Police Inspector Oscar Piper busy solving crimes.
Married book-dealers Joel & Garda Sloane try to clear a friend in the murder of a rival book-seller.
Teenagers try to clear a friend accused of murder.
When Lord Peter Wimsey marries Harriet Vane, a crime author, they both promise to give up crime for good. As a wedding present, Peter purchases the old house where Harriet grew up, but when they try to move in the previous owner is nowhere to be found, until they start to clean the house and find his body in the cellar...
An elevator operator and a janitor team up to solve two murders that may be connected to an illegal gambling operation. Monogram.
A high-society gent has a secret life - he writes murder mysteries and hangs out with the police attempting to solve crimes. This causes him no end of problems when his wife wants to know about his little disappearances and exceptionally late nights out.
Fur theives are looting the traps on the ranch where Roy is foreman and they have murdered one of Roy's friends.
A woman rents a gloomy basement apartment in Greenwich Village thinking it will provide the perfect atmosphere for her mystery writer husband to create his next book. They soon find themselves in the middle of a real-life mystery when a corpse turns up in their apartment.
Mystery writer Barry Craig (Allyn Joslyn) and his wife Jane (Evelyn Keyes), prefer solving crimes rather than writing about them. They get a chance when killings plague the fashion photography studio of Ralph McCormick (Edmund Lowe). After his secretary, Julie Taylor(Anita Louise) reports an attempt to murder her there, Erika McCormick's (Ann Savage) Aunt Isabel Fleming (Mary Forbes) is stabbed and the evidence points to Madge Lawrence (Bess Flowers) an older model and an apparent suicide. Police Inspector Joseph Clinton (Frank Craven) declares the case closed...but then Erika is murdered.
Ronnie Jackson is a lowly baby photographer who secretly fantasizes about being a private detective. When a lovely baroness actually mistakes him for one and asks him to help locate her missing husband, Baron Montay, Ronnie finds himself agreeing. Several days later he is on death row whiling away the hours until his execution by recounting to a group of reporters the bizarre tale of how he ended up there.
Sach just lost his job as an assistant to a private detective, but he wasn't paid. Slip goes with him down to the detective's office to demand payment, but finds the office empty. A woman enters the office and mistakes Slip for the detective and convinces him to take on a case to find her sister after offering a $50 retainer.
Mr. Magoo interprets his nephew's request for $100 as evidence of an unfolding mystery.
In a small town called Skrabbarp in Southern Sweden lives the school teacher Sebastian Pettersson, an amateur detective and one of the most diligent correspondents of the Stockholm police.
A fiction writer begins working on a biography of a pilot who went down during the test flight of a new plane and finds himself soon involved in a series of murders.