Content Warning: This section of the guide features depictions of suicide, self-harm, disordered eating, and sexual assault.

Bodie Kane, a film professor and professional podcaster, introduces the murder of Thalia Keith, her former roommate when both she and Thalia attended the prestigious boarding school of Granby, located in New Hampshire. Flashing back to her recent past, she recounts how she quizzes strangers about the details of Thalia’s murder in an attempt to gauge how many still remember the once well-known murder. Bodie reports that while many people do remember Thalia, others often conflate her story with that of other cases of gender-based assault and violence. Bodie’s questions also serve to jog her own memory on the topic.

In 2016, an unnamed friend sends Bodie a link to the videotaped last staging of Camelot at Granby, leading Bodie to begin informally investigating Thalia’s murder by becoming acquainted with the content of several YouTube conspiracy theorists who post their interpretations of the case’s details. Bodie, who worked backstage on the school’s production of Camelot, scours the decades-old tape for clues, making notes and interpreting the footage anew. Noticing the appearance of a flask belonging to Thalia’s friend Beth on stage, Bodie also has new questions when she sees additional footage of Thalia mouthing something to an unseen person offstage.