Christina "Steenie" MacCorkle, a radio advertising executive, is suspected of murdering her client as Caesar Kluck, a soda magnate.

Loathed by all who met him, or forced to work, with his underhanded business machinations, the victims, and suspects, start piling up.

Including gangster Joe Carney and janitor Tony Lisotti, who is trying to protect his daughter, Maria Lisotti, from being another notch on Kluck's belt, and Harry Lake, who is desperate to get on the air, seemingly at any cost.

Danger on the Air was based on The Crime Club novel Death Catches Up with Mr. Kluck by Xantippe.

[1][2] From retrospective reviews, the authors of Universal Horrors declared the film to be "One of the better Crime Club entries" noting that "Nan Grey contributes a particularly ingratiating performance.