Podcast:CBS Radio Mystery Theater (Restoration) Published On: Thu Aug 06 2026 Description: 0613 - The Sign of the Four (3/8/1977)Written by Murray Burnett. Directed by Himan Brown. Adaptation of a story by Sir Arthur Conan Doyle.Cast: Kevin McCarthy; Court Benson; Jackson Beck; Earl Hammond; Joan Shay.A case of missing pearls leads Sherlock Holmes and Dr. Watson to a secret society that plagues its former members long after they break from the pact.