In the mid 80’s I went to school with a kid from Germany. He once told me about a movie that he had seen in which Nazi scientists were conducting experiments on prisoners. They were murdering them in different ways to see if a particular method of death would result in the victim coming back as a ghost. I never did get the name of the movie but I always thought the premise was pretty interesting. Unfortunately I can’t give you much more to go on since I never actually saw the movie myself. I can tell you I moved out of that state in November of 1984 so the movie had to have been made before then. Probably by at least a few years. Also, since my friend was German it may have been a German movie. Thanks for any help you can give me!