Another Jupiter Jones story, with a popular slant in its radio set-up. The owner of a serial This if Murder stages one episode in an empty house, scene of an unsolved murder. And he is himself murdered between the first run and the Coast run. Jones is in the audience -- but he does ""his stuff"" to his own confusion and perplexity-and only a close call to death himself gives him the needed answer in time. Good buildup, but the author almost gets caught in his own mesh, and the finale is weak.