"Poe Webb, host of a popular true crime podcast, invites people to anonymously confess crimes they've committed to her audience. She can't guarantee the police won't come after her "guests," but her show grants simultaneous anonymity and instant fame-a potent combination that's proven difficult to resist. After an episode recording, Poe usually erases both criminal and crime from her mind. But when a strange and oddly familiar man appears on her show,...