Francis, a young man, recalls in his memory the horrible experiences he and his fiancée Jane recently went through. Francis and his friend Alan visit The Cabinet of Dr. Caligari, an exhibit where the mysterious doctor shows the somnambulist Cesare, and awakens him for some moments from his death-like sleep.

After a young man is murdered, his spirit stays behind to warn his lover of impending danger, with the help of a reluctant psychic.

Professor Barbenfouillis and five of his colleagues from the Academy of Astronomy travel to the Moon aboard a rocket propelled by a giant cannon. Once on the lunar surface, the bold explorers face the many perils hidden in the caves of the mysterious planet.

The deformed Phantom who haunts the Paris Opera House causes murder and mayhem in an attempt to make the woman he loves a star.

Frankenstein, a young medical student, trying to create the perfect human being, instead creates a misshapen monster. Made ill by what he has done, Frankenstein is comforted by his fiancée; but on his wedding night he is visited by the monster.