Isabella feels invisible. She doesn't have many friends at school and spends most of her time trolling her classmates on social media under a fake account. At the Halloween party, Isabella discovers a mask in the basement of the house. When she puts it on, the mask gives her a newfound confidence, but things take a turn when the mask starts to control her life.

James wants desperately for people to like him. At the Halloween party, James finds himself in a time loop reliving the same night, but he ultimately breaks free hand-in-hand with his crush. This fairytale quickly turns into a nightmare.

The teens go on a road trip to Seattle to stay with Margot's mom. Meanwhile, Mr. Bratt is on the verge of selling his story, a fictionalized version of the real events that happened in Port Lawrence, but he needs to find his perfect ending and will go to great lengths to find it.