A hundred years ago the wolf clan was slaughtered by vampires, and Kane, an ancient werewolf, returns bearing vengeance. He meets Eve, the vampire heiress, by fate, yet the ancient enmity between their races stands between them. The vampire patriarch secretly lays a plot, manufacturing misunderstandings that make the two love and destroy each other. After rupture, confrontation, and the revelation of the truth, they fight against the forces of darkness. In the end, the heroine offers herself as a sacrifice to win peace, and the hero avenges his clan — but is left alone to guard the endless night.