Having lost their way, two noblemen are seen resting under the ruins of an old castle, when all of a sudden among the crumbling walls an old witch appears, who on looking in their direction makes angry signs, as if she wanted to crush the intruders. No sooner has this horrible vision disappeared than the two knights are seen listening; they evidently hear sounds of distress, for they soon start up and rush to the ruins. One part of the old structure is still proudly setting on its foundations and the two heroes have some difficulty in breaking open the stout oak door. The noise awakens the occupant of the dungeon, who is seen peering viciously through a window, and when he perceives the intruders he gives a wild laugh and disappears among flames. The two soldiers go through many dark passages and into a huge banqueting hall, where they endeavor to find the unfortunate who emitted the despairing cries, when horrible ghosts make their appearance. The knights fight bravely with their swords but at every thrust of their weapons the forms disappear and they go sprawling on the floor. As they are going to leave discouraged the dwarf first seen through the window, appears again, and laughing at their attempts shows them some horrible visions of death, warns them to depart before worse befalls them and vanishes in a cloud of smoke. They only leave the premises, however, after having been convinced by a beautiful woman who appears as if by magic, that they can do no good in remaining. As they reach the porch the door slams to and again they hear heartrending cries for help. Furious at having been deceived, they enter through another door, but fall into a deep cave where ghosts, spirits and ferocious brutes reign supreme. One of the two men is knocked down and the survivor, after fiercely fighting for his life, succeeds in clearing the cave of its monsters and is going to rest when through the thick rock he witnesses what is going on in the castle. A beautiful woman is being insulted by the crippled imp, is compelled to drink out of his cup and forced to kiss his distorted and repulsive face. Then the imp asks for her hand but she rejects him and consequently is brutally beaten by the valet of the wretched wizard. Not being able to stand such a sight any longer, our soldier brings his friend back to consciousness, tells him of his vision and they start their wild hunt for the victim. This time they are more successful, however, and coming on the unsuspecting criminal they soon have him speared to death. The young woman rushes to her rescuers, and the last scene of this mysterious film shows one of the warriors as the happy bridegroom of the rescued belle, while the other is seen flirting desperately with one of the most winning ladies of honor.