Ken Mueller is a Docent of the National Museum of Television and Radio in New York City.

When Radio hit its height of popularity in the 1930's, radio drama – particularly mysteries – was a big reason. The appeal of this "theater of the mind" continued strong through the 1940's and early 1950's. Early radio pioneers like Norman Corwin, Arch Oboler and Orson Welles translated the traditions of the theater into this new technical format. In turn, their work influenced the Film Noir movement of the late 1940's in Hollywood. Ken Mueller describes an era and its leading figures.