The Keep (1983)

Set during World War II, a German army garrison is sent to guard a mountain pass in a village in Romania's Carpathian mountains and sets up barracks in an ancient stone fortress. Two of the soldiers unwittingly release a mysterious entity that kills or corrupts those within its influence, drawing the attention of a Gestapo commander, a Jewish scholar and a mysterious traveller.

Directed by: Michael Mann

Starring: Scott Glenn, Alberta Watson, Jürgen Prochnow, Robert Prosky, Gabriel Byrne, Ian McKellen

Links: Paramount Pictures, IMDb, Movie posters, Movie stills