The Beast on AllMovie

In this story, a young nobleman with an unusually strong interest in horse-breeding is being prepared to marry the wealthy niece of an American Cardinal. (Noble families which are growing impoverished try to marry off their younger generations to the heirs of wealthy commoners.) When the girl arrives at the nobleman's family mansion the day before the wedding, she is shown around the house and its treasures and is told the story of an ancestor's legendary battle against a beast. That night, she dreams of an erotic encounter with a man/beast which culminates in the death of the beast. On awakening, she finds that she has been in bed with her fiancé, who is now dead. When mysterious bandages on his person are removed, he is seen to have a tail and one hand which has turned animal-like.