The Threshold

CBS Radio Mystery Theater "The Threshold" is a Mystery from Wednesday, September 17, 1980.

Scientist turned hardware store owner Jeff Tanner and his friend, Shane Boggs, seem to be the only people in Mercury, Montana, who know or care about the strange goings-on at Dry Lake, the ghost town in some nearby mountains. An enigmatic couple has bought up the whole town, a waste-land since it was contaminated by radioactivity 40 years before. Half the Dry Lake population died from that contamination. But then who is doing all the construction work Tanner and Boggs hear each night?