Who Killed Aunt Maggie?

Radio mystery script writer Sally Ambler is about to be married, then gets into a quarrel with her intended Kirk Pierce after he finds the story she wrote too contrived. The wedding is put off when a telegram from her Aunt Maggie arrives from Atlanta to let Sally know that her Uncle Charlie has died. Sally is followed to Atlanta after a phone call from a Dr. Benedict warns Kirk of danger lurking for Sally when she gets there. Sally discovers that her uncle's corpse is missing.