David Calder

Following the murder of a prostitute, the police call in Fitz to investigate. An arrest is made and the main suspect David Harvey is brought in for interrogation. However, when an identical murder takes place the team have to consider whether they have the wrong man or a copy-cat killing. The police and Fitz must find the killer before further blood is split.

DS Beck is now back on the force and DS Penhaligon has no choice but to work with him despite her conviction that he raped her. Fitz's life is placed in further turmoil with the death of his mother and the police question Harvey's family in an attempt to stop more killings.

When Julian Shepherd is found drowned, it seems as though he committed suicide due to all his money being tied up in Charles Edmonton's latest invention. When another man dies after poaching peregrine eggs from Charles' wife, Barnaby suspects foul play.

Lucas learns the truth about his past, and Dorothy reaches the Wizard only to learn something shocking.

While Dorothy learns that the Wizard knew her parents, the Witch of the West uncovers a traitor in the Wizard's court.