The colorful Casablanca apartment building is in danger of demolition - but not if Jim Qwilleran can help it. He's determined to restore the building to its original grandeur. So he moves in with Koko and Yum Yum - and discovers that the Casablanca is steeped in history and mystery. In Qwill's very apartment, a glamorous art dealer met an untimely fate, and the veteran journalist and his crime-solving cats are about to reach new heights in detection as the evidence buils up and the Casablanca threatens to crumble down around them!