The episode begins five months after the events of the first season. The trial starts, and the students are called to testify about their roles in Hannah's life.
This refers to the first episode of the second season of the popular Netflix teen drama series (known in Hungarian as " 13 Okom Volt " ).
Clay begins seeing a manifestation of Hannah's "ghost," which serves as a narrative device for his internal dialogue and unresolved grief. Contextual Details 13 okom volt (televíziós sorozat) - Wikipédia
Clay Jensen, still struggling with Hannah’s death, finds a mysterious Polaroid photo in his locker with the message "Hannah wasn't the only one" . This discovery suggests a deeper, ongoing conspiracy of sexual assault at the school.