Strike realises that Margot’s killer is responsible for many other murders that have gone undetected, and lays a trap.

Robin admits the truth to Strike, and a valuable clue helps them solve the case. Season finale.

Long-buried secrets are revealed, putting Strike and Robin in danger as they close in the killer.

Strike and Robin's partnership reaches breaking point as Robin's wedding approaches, and they disagree about how to ensnare a man who abuses children.

Spurred on by the father of a young woman who also went missing in the 1970s, the detectives attempt to outwit an incarcerated serial killer who may hold the key to the case.

A startling discovery seems to confirm the story of the strangled child, but the team are forced to leave the scene before they can properly investigate. Fearing their witness is in danger, they redouble their efforts to find him.

Robin, Strike and Barclay all take risks to further the investigation now that they think Anomie probably killed Edie Ledwell. Strike receives an unexpected and unwelcome visitor.

Edie Ledwell, the co-creator of a cult TV cartoon, The Ink Black Heart, is being harassed by an online figure, Anomie. She asks Robin to uncover Anomie's true identity.

Robin and Strike make a major breakthrough, having eliminated several suspects. Robin's cover is blown, and Strike stays the night at her new flat. Meanwhile, Anomie claims another two victims.

Cormoran Strike, an injured war veteran turned PI, and secretary Robin Ellacott seek the truth surrounding the mysterious death of supermodel Lula Landry.

The agency is the target of a devastating attack. Strike figures out who killed Edie, and having secured proof, Robin puts herself in danger in order to save lives.

Strike makes a breakthrough. Robin is offered a permanent job in HR but is reluctant to take it.