John Quincannon has been hired by the owner of the Golden State brewery to investigate th ''accidental''Â death of the head brewmaster, who drowned in a vat of beer. John is certain he can catch his quarry, but his partner, Sabina, is not sure she even wants to catch hers: Sherlock Holmes or, rather, the madman claiming his identity. A Mr. Roland W. Fairchild of Chicago claims the man is his first cousin, Charles P. Fairchild III, who is due to inherit a $3 million estate-- if Sabina can find him and if he can be proved sane. Sabina is quite certain he is mad but quite uncertain what will happen when he is confronted with the truth. Does every mystery need to be solved?