Two frog brothers named Pinky and Brain lived together. Brain was shorter and fatter than Pinky but smarter, while Pinky was taller and thinner but sillier. Pinky got a job as a waiter while Brain was lazy and slept all day. One day while they were fighting because Brain didn't want to work, a hungry predator came and ate them both. Their spirits then wandered aimlessly on earth and in the spirit world, sometimes appearing in neighborhoods looking for new bodies.