The episode details the testimony of a prison psychologist in the murder trial of Richard Allen, who is accused of killing Liberty German and Abigail Williams in Delphi, Indiana. The psychologist, Monica Wala, described Allen's alleged confessions to her about the murders, including his claims of being a sex addict and wanting to rape the girls. Allen also allegedly expressed guilt and remorse for his actions, even admitting to his wife in a phone call that he killed the girls. Wala also noted Allen's erratic behavior and potential mental health issues, which could be a result of guilt. This testimony, along with other evidence presented in court, has solidified the prosecution's case against Allen.