Michael Mann’s The Keep is an adaptation of the novel of the same name by F. Paul Wilson. It’s a fantastic movie and worth tracking down. This will be one of the movies I review in the future. The original Wilson novel is superb as well, and is the first book in the The Adversary Cycle, a series of novels by Wilson that includes the fantastic Repairman Jack books.
I plan on rewatching it soon and doing a in-depth review of it. Until then I’ll leave you with the synopsis and a few screenshots from the movie. If you have time, check out the link to the trailer below.
Here is a brief synopsis of the film, via IMDB:
Nazis are sent to guard an old, mysterious fortress in a Romanian pass. One of them mistakenly releases an unknown force trapped within the walls. A mysterious stranger senses this from his home in Greece and travels to the keep to vanquish the force. As soldiers are killed, a Jewish man and his daughter (who are both knowledgeable of the keep) are brought in to find out what is happening.