A young woman is found brutally murdered, the hallmark signs of the Ripper upon her, but authorities are divided on the question of suspects.
A beloved toy maker is beaten to death for a mysterious brass box and the coins in his pocket, and the 14-year-old culprit refuses to deny the charge.
H Division and the Independent City of London force search for an underlying pattern amidst the tide of sickness.
The brutal clearing of a local slum for the underground railway reveals an almost undecipherable murder scene and an unreliable witness.
A string of brilliantly masterminded robberies draws the attention of Reid and his team, while Drake is confronted with a specter from his past in the form of his one-time colonel.