Cormoran Strike, an injured war veteran turned PI, and secretary Robin Ellacott seek the truth surrounding the mysterious death of supermodel Lula Landry after the police conclude that she committed suicide.

Strike tells the police that the circumstances of Rochelle's death merit further investigation but is dismissed. He seeks out Lula's friends, the fashion designer Guy Some and model Ciara Porter, and learns that Lula was looking for her biological family.

Robin gets key information from a salesgirl at the boutique Lula visited. Strike arrives just as Robin tries on a stunning green dress and he awkwardly averts his eyes as he explains his CCTV breakthrough - that a man left Lula's wearing a Guy Some hoodie.

War veteran turned private investigator Cormoran Strike investigates the disappearance of a provocative author, while Robin finds herself caught between Strike and fiance Matthew's hopes.

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.

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.