Sam continues her investigation into Mark James' murder. When another of Sebatian Bird's one-time friends is killed the police are ever more convinced of his guilt and grow increasingly frustrated at Sam's inability to provide them the evidence that they are sure is there. The solution lies in an old case and someone's desperate need for revenge.

Confectionery magnate John Briggs, head of an ailing empire and at odds with union leader Kenny Barber, is found dead of an apparent heart attack in a hotel bedroom. He was about to sell his company to millionaire Emmett Schwartzman. His sole heir is long estranged daughter Geraldine, to the chagrin of his brother Phillip, whom Geraldine appoints as company director. Young police pathologist Jack Hodgson claims Briggs was murdered, believing he had been with a prostitute, and is sufficiently persuasive that Leo recruits him to replace Harry, now working in New York. Briggs' right hand man Trenter pays off escort Deanna Collier, who is actually Geraldine's daughter and had just tracked Briggs down. Geraldine gives Deanna a charm bracelet but soon afterwards the girl is murdered.

As Nikki discovers that Deanna was not Geraldine's daughter but an opportunist out to fleece Briggs, Schwartzman decides against buying the confectionery firm. Interviewd by DS Gold in Nikki's presence Geraldine explains that she was raped by Phillip Briggs as a teenager and her baby given away. John Briggs' legal adviser Annette, who found Deanna, expresses unease to Tranter about the deception and is later found murdered. Geraldine is arrested but the pathologists, aided by Jack's wheelchair-bound mentor Clarissa, uncover the truth though the killer never makes it to court. Geraldine is, however, reunited with her real daughter.