London, 1894: A strange contagion has been sweeping through the population of the poor districs of the city but curiously, all the children seem to be unaffected. The young Dr. Jekyll is in search for a cure. Unfortunately, a serum hedevelops does not yield the desired result - as he tries the serum himself he uncovers his dark alter ego Mr. Hyde.
After he accidentally discovers an entrance to an extensive tunnel system, his investigations leadhim deeper and deeper in a mysterious would underneath the city. Bit by bit he stumbles upon an ancient secret sect, who has dreadful plan...
