Having inherited millions, Qwilleran and his two feline companions, Koko and Yum Yum, are preparing to settle down into a life of purrfect luxury. That is, until the son of a rich banker and his wife are found murdered.

To the police, it looks like a robbery gone awry. But then Koko develops an odd appetite for glue. Qwilleran doesn't spot the clue until his beloved Siamese's taste for paste tangles them in a web of love, danger, and their stickiest case yet!