Desc: The Fatal Mistake: Directed by Scott R. Dunlap. With William Fairbanks, Eva Novak, Wilfred Lucas, Dot Farley. After being fired from his job on the "Evening Star" newspaper, cub reporter Jack Darwin (William Fairbanks) with the help of undercover police woman Ethel Bennett (Eva Novak), prevents the theft of the valuable Riko jewels. Jack gets his job back...and marries Ethel.