The Rivals of Sherlock Holmes (TV Show 1971) | The Case of the Mirror of Portugal (S01E06)

Episode 6: 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.

Author: Arthur Morrison
Peter Vaughan as Horace Dorrington, corrupt detective

Episode 7: https://rumble.com/v72ena6-the-rivals-of-sherlock-holmes-tv-show-1971-madame-sara-s01e07.html