After days of Bisclavret being missing his curious wife asks him of where he's been. He final comes out and tells her the truth, he's a werewolf.
The news her husband tells her is shocking and she does not want to be married to a "beast" so she asks a knight to help her steal his clothes so he remains a werewolf forever in exchange for her hand in marriage.
Bisclavret is stuck as a werewolf because of his faithless wife and knight's plan when the king comes hunting in the woods. The king decides he likes the wolf and befriends him.
The werewolf and the king live happily together with a strong bond.
One day the kind has a feast where Bisclavret see's his old wife and lashes out biting her nose off. The king is confused by this act of violence and almost kills the wold until he figures out that there must be a reason for the out break.
After locking his ex wife in the dungeon and torturing her to get information out the king finds that Bisclavret is the werewolf and that she trapped him in his wolf form. After getting his clothes the king banishes and curse the wife and Bisclavret gets his home back.