We're All Going to the World's Fair

Casey is a lonely teenager living with her single father, isolated and craving connection. She's fascinated by horror and feels trapped in her mundane life. The challenge promises 'change' and escape from her reality - she explicitly states she 'wants to go to the World's Fair' as a way to transform and find something meaningful beyond her isolated existence.

The film shows several other participants in disturbing states: one claims he's 'turning into something,' another says there's 'Tetris happening inside him,' and Keith laments 'I can't feel my body' while slapping himself on a treadmill. These suggest the challenge affects people differently - some experience physical dissociation, others claim transformation. Whether these are real effects or psychological breakdowns is ambiguous.

JLB is an anonymous user who reaches out to Casey after she begins posting her challenge videos. He warns her about the darker aspects of the World's Fair challenge, suggesting it can alter her subconscious. He positions himself as concerned and protective, though his true intentions remain unclear. Their relationship develops through Skype calls and messages, with JLB watching her uploads from a distance.

In her final revelation to JLB, Casey claims she reached 'the heart of the fair' that night but something 'brought her back.' This suggests she experienced something transformative during the challenge - possibly a peak experience, hallucination, or psychotic break. The ambiguity lies in whether this describes a literal supernatural journey, a psychological breakthrough, or simply her descent into mental illness.

One year after her involvement with the challenge, Casey has spent time in a psychiatric institution. She meets JLB at a cafe where they share coffee and discuss their experiences. The film never clarifies whether JLB is a real person she met online or entirely imaginary. Her cryptic statement about reaching 'the heart of the fair' but being 'brought back' suggests a traumatic psychological event rather than a literal supernatural experience.

The film deliberately leaves JLB's existence ambiguous. He's never shown outside of Casey's screen or Skype calls. The final scene shows them meeting in person, but this could be a hallucination or metaphor for her fragmented mind. His concern for her and prayers for her safety could represent genuine connection or the voice in her head urging her toward help.

During her descent, Casey ventures into her father's barn and steals a shotgun. This represents her complete break from reality and desperate attempt to find something tangible or dramatic. As her mental state deteriorates and the line between online and offline blurs, she seeks a physical action that might trigger 'change' or prove something is real. The theft also shows her growing alienation from her father and normal life.

As part of her entry into the challenge, Casey pierces her finger and smears blood on her laptop screen while reciting 'I want to go to the World's Fair' three times. The ritual appears to be a commitment device - it represents a threshold moment marking her dedication to the challenge. Whether it has any actual supernatural effect or is purely symbolic of her psychological commitment is never explained.

Casey's involvement with the World's Fair challenge coincides with a severe mental health crisis. She experiences dissociation ('leaving her body'), uploads disturbing videos showing her crawling toward the camera, and makes statements suggesting paranoid ideation. Her father is emotionally distant, leaving her without support. She ultimately requires institutional care, though whether the challenge caused her breakdown or merely triggered an underlying mental illness remains unclear.

The film never confirms whether the World's Fair challenge has supernatural powers or if it's entirely a psychological phenomenon. Participants report disturbing experiences, but these could be mass hysteria, shared delusions, or an elaborate ARG designed to psychologically manipulate vulnerable people. The ambiguity is intentional - the film explores how digital spaces can blur reality and how isolation can fuel psychological breakdown.