Retiring in Pickax, actress Thelma Thackeray has decided to start a film club and organize a fundraiser revue, starring Koko the cat. But Thelma's celebrated arrival takes an unpleasant turn when the strange circumstances of her twin brother's recent death seem suspicious to Jim Qwilleran. Qwill needs a helping paw in this case. But will Koko deign to take time from his stage debut?