Cats are superior to humans; just ask any dog. But does that always make them better creatures? Not necessarily, as Francis, the feline hero of this book, discovers soon after having moved to a new home with his human pal Gustav. Equally annoyed by the laboratory smells of their new house and eager to get to know the rest of his new neighborhood, Francis decides to take a walk – and walks right into the discovery of a dead cat and, by virtue of that discovery, also into the guy who instantaneously becomes his new best friend. And as gruff old Bluebeard, Francis's new side kick explains to him, this is not the only dead cat he has recently seen. In fact, "cold bags" (cat corpses) have turned up in the neighborhood with an alarming frequency, all killed expertly and quickly by a bite to their necks. And their appearance somehow seems to coincide with the arrival of an exotic, wild, self-described "very ancient but very new" breed of cats whose females are, Francis is soon to discover, as seductive as they are angels of death to any male cat mating with them.