In this mystery in the bestselling Cat Who series, Jim Qwilleran and his cats, Koko and Yum Yum, are living the high life--until things take a deadly turn.

Inheriting unexpected millions has left reporter Jim Qwilleran looking like the cat who swallowed the canary. While his two Siamese cats, Koko and Yum Yum, adjust to being fat cats in an enormous mansion, Qwill samples the lifestyles of the rich and famous by hiring a staff of eccentric servants. A missing housemaid and a shocking murder soon show Qwilleran the unsavory side of the upper crust. But it's Koko's purr-fect propensity for finding clues amid the caviar and champagne that gives Qwill pause to evaluate the most unlikely suspects--before his taste for the good life turns into his last meal.