Watch 123Movies. The tragic story revolves around the licentious Duke of Mantua, his hunch-backed court jester Rigoletto, and Rigoletto's beautiful daughter Gilda. The opera's original title, La maledizione (The Curse), refers to a curse placed on both the Duke and Rigoletto by a courtier whose daughter the Duke has seduced with Rigoletto's encouragement. The curse comes to fruition when Gilda falls in love with the Duke and sacrifices her life to save him from assassins hired by her father.