"Lux Radio Theater" broadcast a 60 minute radio adaptation of the movie onJune 16, 1947 with Barbara Stanwyck and Richard Conte reprising their film roles.
Although it is never stated in the film, Karen Duncan is suffering from tuberculosis (TB). One of the earlier treatments for TB was to place the patient in a healthy environment with continuous fresh air (often in a mountain or desert location), and to ensure that he/ she had a good diet and plenty of rest. This resulted in the development of many sanatoria for TB patients (similar to the one run by Stanton) all over the world, .
Clermont says to Karen "Whither thou goest, so shall I". This is a quote of what Ruth says to Naomi in the biblical book, Ruth 1:16-17.
Rereleased in 1953 under the title "Man Killer."