April 1889 - six months since the last Jack the Ripper killing, East London is emerging into a fragile peace, hopeful that this killer's reign of terror has run its course. Between the factories, rookeries, chop-shops and pubs that mark out this maelstrom moves Detective Inspector Edmund Reid, a forward-thinking detective haunted by a tragic past mistake. Accompanied by the loyal brawn of Detective Sergeant Bennett Drake and the mercurial brilliance of U.S Army surgeon and one-time Pinkerton detective, Captain Homer Jackson, Reid seeks to bring justice to the world on the brink of mayhem.