The villain captures the good guy and his girlfriend and brings them aboard his ship, after a few days he has the good guy brought before him bound, he pleads "do anything you want to me just let (girlfiends name) go".
Bad Guy: "funny, that's what she said to me (but about him) and I agreed, so over the last few days I let my men have their way with her, they did horrible things to her and left her barely alive, in the end she cursed your name and told me to do what ever I wanted to you as long as I let her go unharmed. But she was already harmed, so I killed her and had you brought before me. You may now go... overboard into those shark infested waters."
Good Guy: "but you said you'd let me go!"
Bad Guy: "you can go... over by those sharks."
So good guy dies bad guy laughs. The End.