A scientist collapses during the premiere of his television system, his death broadcast around the world. Investigations into the murder provide no clues and the victim's assistant (Bela Lugosi) becomes the prime suspect. When he is found dead with a knife in his chest, the case seems unsolvable, until the assistant appears to return from the dead and untangles the mystery. Bela Lugosi plays a dual role in Murder by Television, which was produced for under $35,000 by Cameo Pictures. Of interest is an early performance by Academy Award-winner Hattie McDaniel (Gone With the Wind) and the song "I Had the Right Idea," which was written for the film by Oscar-winner Oliver Wallace (Dumbo).