After years of living a tech-free life with her mother, 16-year-old Hedda is going back to the world of the Glare - her word for technology. Hedda was taught to be afraid of it all, that it would get inside her mind and hurt her. But now she's going to stay with her dad in California, and she's finally ready to be normal. Then Hedda rediscovers the real Glare, a first-person shooter game from the dark web that scared her when she was younger. But as the game begins spreading among her friends she realises the truth behind her nightmares is even more twisted than she could have imagined.