Karkat's always had weird dreams. Most about classmates and family being gray aliens from a planet called Alternia. They're all just dreams right? Sure they are. Well, they were just dreams until freshman year when he killed some kidnappers in self defense with skills and knowledge he doesn't remember having. Now the dreams- no memory's won't stop! Gee! What ever could go wrong!

The town of Alternia has been abandoned for decades, and so has the towns darkest secret. When Karkat and his friends scavenge the remains of what once was the hotel Carnival, Karkat gains more then just a new sweater, but the ghost in which the sweater belonged. Will Karkat and friends be able to put the spirits of the carnival to rest? Will their killer finally be reviled?