The Case of the Mirror of Portugal (S1E6): When a priceless gem comes within grasp, detective Horace Dorrington cuts more than a few corners to get his hands on it. But he battles a surprisingly worthy adversary from an unexpected quarter, one as ruthless and determined as himself.
It features Peter Vaughan, Paul Eddington, Ingrid Hafner, and Kenneth Colley.
The Rivals of Sherlock Holmes is a British television anthology mystery drama series, which originally aired between 1971 and 1973. Adaptations of mystery stories written by Sir Arthur Conan Doyle's contemporary rivals in the genre.