The East Side of Shinjuku Ward is the neon-lit Kabuki-chō district that stretches across the center of this chaotic city. Where light shines, there are also deep shadows. Yet even deep in this darkness where evildoers lurk, the light of a detective tenement shines. The tenement run by Mrs. Hudson has seven peculiar, shady individuals. The curtains has risen on this stage on the night when a bizarre murder by Jack the Ripper takes place.