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.

After amateur detective Max Carrados ruins the alibi of an Irish militant accused of murder, the man's colleagues plot their revenge. To save his life, a trapped Carrados must find a way to get a message to the outside world-one that even a blind man could understand.

Private detective Horace Dorrington sees no conflict in helping himself while helping his clients.

Police are not appreciative of a crime-solving socialite, even after he solves the case.

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.