1889, the magic city of London. The Iron Man Phileas Fogg has received a warning letter from the phantom thief Lupin. What is Lupin after? A black diamond in Fogg's ownership with a most peculiar history, "The Penultimate Night." The preeminent forces of Sherlock Holmes, Scotland Yard, and the detectives specializing in demonic cases have been assembled to put a stop to Lupin's plan. In this struggle for the diamond, who will have the last laugh?!