The Adventures of Sherlock Holmes

Holmes and Watson board a passenger train bound from London to Edinburgh, to guard the Star of Rhodesia, an enormous diamond worth a fortune belonging to an elderly woman of wealth; but within the first hour of the trip, the woman's son is murdered and the diamond stolen and any of the passengers in their car could be the killer thief.

The famous Borgia Pearl, a valuable gem with a history of bringing murder and misfortune to its owner since the days of the Borgias, is brought to London, thanks in part to Sherlock Holmes. But before long the jewel is stolen, due to an error on Holmes' part, and shortly thereafter, a series of horrible murders begin, the murderer leaving his victims with their spines snapped and surrounded by a mass of smashed china.

A tough detective who is part of an elite New York City unit is trying to find out who killed his partner, but uncovers a plot to kidnap mobsters for money.

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

Eccentric consulting detective Sherlock Holmes and Doctor John Watson battle to bring down a new nemesis and unravel a deadly plot that could destroy England.

Enola takes on her first official case as a detective, but to solve the mystery of a missing girl, she'll need help from friends — and brother Sherlock.

Mysterious Orfamay Quest hires Los Angeles private investigator Philip Marlowe to find her missing brother. Though the job seems simple enough, it leads Marlowe into the underbelly of the city, turning up leads who are murdered with ice picks, exotic dancers, blackmailed television stars, and self-preserving gangsters. Soon, Marlowe's life is on the line right along with his case.

Mary Morstan has received a pearl in the post every year since her father's disappearance. This leads Holmes and Watson to the truth about a secret pact between four convicts during the Indian Rebellion of 1857.

A crooked politician finds himself being accused of murder by a gangster from whom he refused help during a re-election campaign.