The Devil's Wedding Night

Two rival brothers are looking for the magic ring of the Nibelungen, a mystical jewel that confers all power to the one who possesses it. The first, Karl, is an archaeologist who wishes to give it to an archaeological institute and the second, Franz, is a materialist who wants to appropriate it to be rich and powerful. Franz, after having read Karl's research, travels to the Carpathian Mountains in Transylvania, to the ancient castle of Count Dracula.