"Vecna's Curse" is now haunting the residents of Hawkins, just as they beginning to heal from the events of season 3. With the news of Chrissy's death spreading around town, the Hawkins kids begin their own investigations as to what happened?  What the culprit Eddie, the leader of The Hellfire Club, or are their worst fears coming to life and something far more sinister is the cause?  Fred becomes the second gruesome victim of Vecna, and his death gives us more clues to how Vecna chooses his prey.