A nephew is framed for the murder of his uncle, and it's up to Sherlock to clear his name.

Kobayashi runs into his old boss from his time in the Kaneko Gang. When one of the Kabukicho Irregulars steals a valuable sticker from the gangster, he'll have to risk it all to help them out.

The identity of Jack the Ripper is revealed when Sherlock finally makes his move.