Trying to finish Hellhounds, about Transylvanian werewolves eating homeless people in Lancashire. It was originally a low-budget horror movie script, but since it no longer has to be something that can be filmed on a low budget, I've changed much of the setting, and that means rewriting most of the story.
I originally wrote the script over ten years ago and hadn't read it since, so I was quite surprised on re-reading it last year to discover the unexpected plot twist near the end. Which was cool. Hopefully no-one else who reads it will see it coming, either.