The Adventures of Sam Spade - The Rushlight Diamond Caper
Sam is hired to guard the gifts at a posh society wedding. The person who hired him is Mrs. Rushlight, aunt of the groom.
Mrs. Rushlight's late husband had gifted his wife with a very expensive and rare diamond. However, in an agreement she signed, the diamond was to go to the wife of his male heir -- the nephew who is getting married.
When a murder takes place, Sam has to unravel all the threads to discover how the Rushlight Diamond fits it.
Featuring: Howard Duff
Original Air Date: July 4, 1948 on CBS