When Inquisitor Tobias of the Watch Cats investigates the murder of three kittens, he first suspects rats. But during his investigation, the case becomes more complex. When he finds a connection to a human serial killer, he begins to unravel a deeper conspiracy that threatens all of them, cats, rats, dogs, birds and humans. But in a city ripped apart with violence, greed and pollution, it is difficult to know who you can trust.