Nazis are forced to turn to a Jewish historian for help in battling the ancient demon they have inadvertently freed from its prison.

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.—Brian House

German troops occupy an uninhabited citadel in Romania to control the Dinu Mountain Pass. Two soldiers attempt to loot a metallic icon within the citadel in spite of being warned by a local priest. The soldiers accidentally unleash an evil entity, which kills them. The entity proceeds to kill several more soldiers in the following days and begins to take an intimidating form.—[email protected]

In 1941, in Romenia, a German squad under the command of Capt. Woermann is assigned to protect a pass from a keep. Woermann notes that the fortress was built to prevent something to leave the interior and talks to the keeper Alexandru. He warns Woermann to not spend the night in the fortress and to not touch the crosses on the wall. However, two greedy soldiers decide to steal a silver cross, unleashing a smoke being and are murdered. When a fifth soldier is found dead in the keep, Woermann requests to be relocated with his men, but the SS Nazis under the command of the cruel Kaempffer arrive instead. He immediately executes three villagers, believing there are partisans in the village. Woermann stops him and shows a message written on the wall of the fortress. Kaempffer brings the local Father Fonescu to translate but he says that maybe Dr. Theodore Cuza, who is in a concentration camp, is capable to translate. The sick Dr. Cuza is brought in a wheelchair with his daughter Eva Cuza and says that the message is written in an ancient language that has been dead for five-hundred years. Meanwhile, a man in Greece named Glaeken, who seems to be possessed, travels by boat and motorcycle to the keep. What is the mystery of the keep?—Claudio Carvalho, Rio de Janeiro, Brazil

Nazis make an old East European town's Keep their base. The local people fear the place is haunted. As soldier after soldier is killed by the beast in the Keep, the Nazis have no option but to seek the aid of a Jew to translate some manuscripts.—Rob Hartill