CBS Radio Mystery Theater – Sinister Shadow. ep953, 790212.

Rows of gravestones and headstones in a military cemetery, surrounded by well-manicured lawns and trees. The gravestones are arranged in neat rows and columns, with some bearing the insignia of different military branches. The sky is overcast and the trees in the background are in the midst of changing colors, indicating autumn.
Cemetery. "Used with permission from Microsoft."

Title:The Sinister Shadow.
Plot:An unusual tale of how a timid woman chanced upon her doppelganger in a seedy bar, and how her double turned against her.
Episode:0953.
Air Dates: First Run – February 12, 1979
Repeat – August 2, 1979

Read more at: CBS Radio Mystery Theater | Episode 953 | The Sinister Shadow.