Not your grandma's pajamas

Sometimes a mystery is just a mystery. Like where are the donuts? Sometimes there is more to it. A hint of something sinister. Like Aliens. Mystery Pajamas is about Aliens.

Or maybe it's like an alien but it's really an earth creature so misshappen people think it's an alien. Like a crocodile with 17 eyes. Crocodiles are dangerous in space, letting them lose on a spaceship might sound like a neat idea but once they get the hang of kicking off the sides they're unstoppable.