Cats are vanishing all over the neighborhood, but Jonas Shurmann doesn't care. He thinks cats are spoiled brats who don't appreciate anything people do for them. Jonas has bigger problems in his life: the ridiculous-looking chicken costume he has to wear to his class Halloween party, working at the vet's office after school, and his math book getting thrown into the yard of a haunted house. Those are real problems! At least that's what Jonas thinks, until he discovers he can hear cats talk. Through his newfound power, Jonas befriends two cat detectives, CatBob and Neil Higgins, and together the trio sets out on a pulse-pounding adventure that leads them straight to the door of a haunted mansion that holds the chilling truth behind the disappearances.