The Rivals of Sherlock Holmes

John Neville stars as R. Austin Freeman’s brilliant forensic expert Dr. John Thorndyke. A girl has been found with her throat cut in an East End lodging house. Thorndyke and his partner, Dr. Jervis, examine the body and find a clue which the police completely overlook.

A young post office clerk is gunned down at her counter in a violent robbery. Private detective Max Carrados (Robert Stephens) has vital evidence in the case. But a blind man is an easy target to a gang of desperate men.

Peter Vaughan stars as Arthur Morrison’s notorious villain, private inquiry agent Horace Dorrington. In this story of fraud and industrial espionage, the deadly rivalry of two big bicycle companies leads to some very dirty work at the race track and at the stock exchange.

Every jewel thief in the country has got his eye on the fabulous Wiltshire Diamonds, two hundred perfectly matched stones. To help safeguard the jewels, the Duke calls in man-about-town Simon Carne (Roy Dotrice), a rich and charming hunchback with a mysterious side, whose wit and sophistication make him irresistible to women.

Donald Pleasence plays world-famous ghost hunter Carnacki, called to Higgins Hall to investigate supernatural threats against the bride-to-be. The family ghost is an invisible horse which, in the past, always caused the death of the daughter of the house on the eve of her wedding.

Diamond merchant Leon Bouvier possesses the Mirror of Portugal, but his brother Jacques believes it should be his. Jacques arranges for private agent Horace Dorrington (Peter Vaughan) to steal it, but Dorrington wants the diamond for himself. After Leon is robbed, he calls in Dorrington himself to investigate the case.

Private detective Dixon Druce (John Fraser) joins forces with Inspector Vandeleur (George Murcell) to investigate the case of a death of an heiress who was under the influence of professional beautician Madame Sara.

Ronald Hynes stars as private investigator Jonathan Pryde in this complex tale of Victorian espionage involving secret weapons and forgery on a grand scale. When Pryde is engaged by the Imperial Russian Embassy to look into forged currency, the Admiralty has another task for Pryde.

Elvi Hale stars as Baroness Orczy’s detective Lady Molly of Scotland Yard. Lady Molly and her policewoman partner Mary Granard meet for tea only to find themselves at a murder scene. Why was the victim murdered, and who was the woman in the big hat who was last seen with him?

Private investigator Martin Hewitt (Peter Barkworth) goes to a London lodging house to notify Miss Chapman of an inheritance. But while he’s there, the death of a pet tortoise, the discovery of a voodoo doll, and a missing corpse build an alleged murder case.

Romney Pringle (Donald Sinden) is a private investigator and a confidence trickster. Scotland Yard asks him to investigate the Assyrian Rejuvenator – a phony medicine to revive aging spirits – that has taken in an aging military man in love with a young starlet.

From society ballrooms to the East End dock, private detective and court jeweler Sutton (Robert Lang) follows a trail of stolen jewelry in this Victorian case of robbery and murder.