The episode recounts the investigation and trial of Gareth Pursehouse, who was convicted of the first-degree murder of his ex-girlfriend, Amie Harwick, a popular sex therapist. The sources explore the history of the couple’s abusive relationship, including Harwick’s attempts to escape Pursehouse’s harassment and her prediction of her own demise. The texts highlight the police investigation, including their discovery of evidence linking Pursehouse to the crime and the theory that he planned to inject Harwick with a poison but resorted to violence when his initial plan failed. Ultimately, the jury found Pursehouse guilty and sentenced him to life in prison without parole.