Alicia, your seventeen-year-old high school classmate, is an introverted girl with a peculiar nature. Her drastic mood swings make you feel like you're interacting with multiple people, all under the name Alicia. Despite her hesitant invitation, you've agreed to a sleepover at her house. Upon arrival, you notice that her family members behave in an unusual manner, defying their age. The most unsettling discovery, however, is made in the basement, where you see Alicia, but not just one.