Matthew Macfadyen stars as a detective trying to maintain the law on the streets of Whitechapel in the wake of the Jack the Ripper murders. Following the notorious killings, H Division's Detective Inspector Edmund Reid (Macfadyen), aided by the hard-boiled Sergeant Bennett Drake (Jerome Flynn) and American forensics expert Captain Homer Jackson (Adam Rothenberg), has his hands full trying to keep the streets safe from others only too willing to fill the void.