Yuukoku no Moriarty

Synopsis

Railway police arrest Watson despite his protest the blood came from a man he bumped into near the toilets. Holmes and William determine the victim, Trevor Redwood, is a jeweler who was inadvertently killed when he woke up in the middle of a robbery after being drugged. With Holmes following the physical evidence, William constructs a psychological profile of the killer. Following their methods, they both determine the killer is a porter who is unable to dispose of his bloody uniform. Holmes discovers blood on porter Eddie Hawthorn, but Hawthorn claims the blood is his own from an earlier accident. William identifies additional blood evidence Holmes missed, which causes Hawthorn to confess. William reveals to Louis he planted the extra evidence, reasoning that while Holmes would have eventually found Hawthorn guilty, his illegal methods got results much faster. With Holmes defeated by William, he reluctantly asks for Watson's continued assistance in solving his cases. Meanwhile, Holmes' brother, Mycroft, meets a young Queen Victoria about missing documents relating to one of Britain's greatest national secrets and is given royal permission to do whatever is necessary to retrieve them.

(Source: Wikipedia)