Allegra thinks life should be quiet, since she is a talented witch with a familiar, a beautiful large fat black cat with reflective green eyes who has the need to be territorial. Unfortunately, she runs a curio shop on a small street that an evil man has decided to buy so he can level the shops and build a tribute to himself.
To help fight evil, there are two interesting detectives of the night. One is a large powerful wizard who wants to invade Allegra's bedroom. The other is a brilliant but clumsy human with talent in computers and puzzles.