Anatasia offers Lois Cavendish her old mansion for business. However, she lays down a condition that the place is haunted and they have to free it from ghosts.
Paul Lavond is framed for murder and robbery by his associates and sent to the Devil's Island. Years later, when Paul escapes with the help of a scientist, he vows vengeance on his associates.
When an evil king plans to use science to capture the world, Hercules joins forces with a sorceress to beat the monarch and save Cassiopeia, his lover.