We're All Going to the World's Fair

A teenage girl named Casey spends a cold night alone in her attic bedroom, browsing the internet under the glow-in-the-dark stars and black-light posters on her ceiling. She decides to take the World's Fair Challenge, an online horror game, and documents her experiences on the internet. As she becomes increasingly unsure of what's real and what's just a game, a mysterious figure reaches out to her, intrigued by her online uploads.