Isaac Crawley has just returned home from London and is obsessed with the Jekyll and Hyde play, which has opened at Macaulay's Theater in Louisville, Kentucky. On the fourth night of the show, a body is found on the riverbank, butchered like Jack the Ripper's first victim. The police set their sights on Issac, who has recently developed an opium habit, a propensity for blackouts, and noticeable changes in behavior. Since Isaac was in London during the horrific killing spree, they think he may be the Ripper himself.More bodies are found, eerily linked to the Ripper, and as evidence points toward Isaac, his former alienist, Dr. Blackwood, steps in, locking him away in the Lakeland Asylum in a desperate effort to keep him safe. What Dr. Blackwood discovers lurking inside Isaac's mind needs to be destroyed to save him, but it also holds the key to finding the real killer, who is still out in the streets, imitating the Ripper.
