Untold years ago, a monster woman and a human man witnessed the end of the world. It went like this: one explosion; then two explosions; then a great rumbling; and then, darkness. And that should have been the end of it, and them, and everything. But today, one-and-a-half monsters and two-and-a-half humans will witness that end again -- and if they aren't careful, it might be their end, too.