**_Arty fantasy/horror taking place at a citadel in Romania during WW2_** In late 1941, a motorized German infantry unit holds a pass in the Carpathian Mountains by occupying a strange fortress that’s “built backwards,” as the captain observes (Jürgen Prochnow). When soldiers start mysteriously dying, it draws a ruthless Nazi commander into the fray (Gabriel Byrne), as well as a Hebrew professor and his daughter (Ian McKellen & Alberta Watson). A strange nomad is also attracted to the proceedings (Scott Glenn). Based on the 1981 book of the same name, "The Keep" (1983) is a supernatural…