Director Jack Bernhard met wife Jean Gillie in England, where he was stationed during WWII. He intended this film as a vehicle to showcase her to American audiences, but they divorced a short while later, and she did only one other film before her early death at age 33.
The following snipe was stapled and pasted on all of the printed material sent to the exhibitors that booked this film: IMPORTANT! The Motion Picture Association's Advisory Council has urgently requested that there be no mention of specific poisons in publicizing "DECOY." Please eliminate all names of poisons (such as cyanide or methylene blue) from the publicity, exploitation and advertising on this picture.
The movie was largely unavailable for viewing from 1970 to 2000, and since its rediscovery has acquired cult status.