"In the west end of London, an apparently crazed individual is on the loose, breaking into art galleries and private homes to slash valuable paintings of women. Despite Scotland Yard's best efforts, the criminal remains at large and continues on his destructive path. When Joanna and the Watsons are called in to solve the mystery, they soon discover that although the canvases have been slashed, their backings remain pristine, with no cuts or scratches....

Joanna and the Watsons devise a clever trap when they are hired by Scotland Yard to track down a stolen document outlining a secret treaty between England and France.

Discharged from the military after suffering severe wounds, Dr. Watson unsuccessfully searches for accommodation until a chance encounter leads him to Sherlock Holmes, and 221 B Baker Street. Holmes is a master chemist, a talented musician and an expert on the universal aspects of crime. He reveals to Watson that he is a consulting detective and soon draws Watson into his investigation of a bizarre murder. A new partnership begins unbeknownst to Watson...