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

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.

Strike is approached by a woman asking for help to find her mother, Margot Bamborough, who went missing in 1974 when a psychopathic serial killer stalked the streets.

The investigation takes a dangerous turn as a disturbing piece of evidence leads Robin and Strike into London’s underworld. Robin risks her life by pursuing a vicious suspect.

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

A dismembered leg sent to Strike's office sends both his and Robin's lives into disarray, forcing them to confront spectres from their pasts.

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.

Robin discovers a startling truth close to home. The government minister’s blackmailer becomes the prime suspect in the case, but Robin and Strike believe there was an accomplice.

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

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

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

War veteran turned private investigator Cormoran Strike investigates the disappearance of a provocative author. Robin is caught between Strike and Matthew's hopes.

Cormoran Strike and Robin Ellacott are at odds following Robin’s wedding to Matthew, but there’s no time to mull over the new distance within their professional relationship, as a frightening visit from a potential client puts a new case on the table - and Robin and Strike set to work looking into reports of a strangled child.

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.

Delving deeper into the hidden meanings and concealed secrets of Bombyx Mori, Strike and Robin scour all corners of London's literary world to unmask the killer.

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.

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, 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.

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.