Just as things seem to be settling down for Sherlock Holmes and his partner, Dr. John Watson, a new, unexpected client appears,  bringing with her a different kind of case, and her own kind of trouble. It's been hard enough for Dr. Watson to acclimate to becoming a werehound. Now, he has to deal with a new, undesirable partner-in-crime in the form of a sassy cat who seems determined to take his place in Sherlock's regard. Can Sherlock and Dr. Watson overcome this new threat to their partnership in time to save another member of the were community from death at the hands of a murderous maniac?