Sh! The Octopus (1937)

High society sleuths Nick and Nora Charles run into a variety of shady characters while investigating a race-track murder.

A psychiatrist with intense acrophobia (fear of heights) goes to work for a mental institution run by doctors who appear to be crazier than their patients, and have secrets that they are willing to commit murder to keep.

Scooby-Doo and the gang are on the case when a mysterious lake monster starts scaring the guests at a summer resort in Erie Point, where Fred, Daphne, Velma and Shaggy have taken on seasonal jobs to pay for a barn they accidentally burned down. But in addition to sneaking suspicions, there's some romance in the air.

On a trip to visit his parents, detective Nick Charles gets mixed up in a murder investigation.

Nancy Drew, a smart high schooler with a penchant for keen observation and deduction, stumbles upon the haunting of a local home. A bit of an outsider struggling to fit into her new surroundings, Nancy and her pals set out to solve the mystery, make new friends, and establish their place in the community

Mystery Inc. is summoned to investigate occurrences in a haunted villa, where a black knight terrorizes anybody who tries to get close to treasure hidden by the former owner of the building.

Jane Marple solves the mystery when a local woman is poisoned and a visiting movie star seems to have been the intended victim.

Scooby-Doo and the gang team up with their pals, Bill Nye The Science Guy and Elvira Mistress of the Dark, to solve this mystery of gigantic proportions and save Crystal Cove!

In the town of Normal Valley, an eccentric magician named Maestro entertains the local children every day in his spooky mansion. One stormy night, the town's mayor leads a group of angry citizens to the mansion in an attempt to run Maestro out of town.

A young boy's discovery of a colorful, wish-granting rock causes chaos in the suburban town of Black Falls when jealous kids and scheming adults alike set out to get their hands on it.